/**
 * UK Financial Calculators - Main Stylesheet
 * Professional, trustworthy design for financial services
 */

/* ===========================================
   CSS VARIABLES & DESIGN TOKENS
   =========================================== */
:root {
    /* Colours - Professional financial palette */
    --color-primary: #1e40af;
    --color-primary-dark: #1e3a8a;
    --color-primary-light: #3b82f6;
    --color-primary-lightest: #dbeafe;

    --color-secondary: #0f766e;
    --color-secondary-dark: #115e59;
    --color-secondary-light: #14b8a6;

    --color-success: #16a34a;
    --color-warning: #ea580c;
    --color-danger: #dc2626;

    /* Neutrals */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Semantic colours */
    --color-text: var(--color-gray-800);
    --color-text-light: var(--color-gray-600);
    --color-text-muted: var(--color-gray-500);
    --color-background: var(--color-gray-50);
    --color-surface: var(--color-white);
    --color-border: var(--color-gray-200);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --container-max-width: 1200px;
    --header-height: 70px;
    /* Added */
    --container-padding: var(--spacing-6);

    /* Z-index layers */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-tooltip: 400;
}

/* ===========================================
   RESET & BASE STYLES
   =========================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

main {
    flex: 1;
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ===========================================
   TYPOGRAPHY
   =========================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
}

h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-6);
}

h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-5);
}

h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-4);
}

h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3);
}

h5 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
}

h6 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-2);
}

p {
    margin-bottom: var(--spacing-4);
}

.text-sm {
    font-size: var(--font-size-sm);
}

.text-lg {
    font-size: var(--font-size-lg);
}

.text-muted {
    color: var(--color-text-muted);
}

.text-center {
    text-align: center;
}

/* ===========================================
   LAYOUT
   =========================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.section {
    padding: var(--spacing-16) 0;
}

.section-sm {
    padding: var(--spacing-10) 0;
}

/* Grid system */
.grid {
    display: grid;
    gap: var(--spacing-6);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Flexbox utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

/* ===========================================
   HEADER
   =========================================== */
.header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) 0;
    gap: var(--spacing-8);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-decoration: none;
    font-family: 'Caveat', cursive;
}

.logo:hover {
    color: var(--color-primary-dark);
    text-decoration: none;
}

/* Brand "I" styling for "I Calculate" - slight emphasis on the I */
.brand-i {
    font-style: normal;
    font-weight: var(--font-weight-bold);
    font-size: 1.15em;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-link.active {
    background: var(--color-primary-lightest);
    color: var(--color-primary);
}

/* Dropdown menu */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 260px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(4px);
}

/* Right-align dropdowns for last two nav items to prevent overflow */
.nav-item:nth-last-child(-n+2) .nav-dropdown {
    left: auto;
    right: 0;
    transform: translateX(0) translateY(8px);
}

.nav-item:nth-last-child(-n+2):hover .nav-dropdown {
    transform: translateX(0) translateY(4px);
}

.nav-dropdown-link {
    display: block;
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.nav-dropdown-link:hover {
    background: var(--color-gray-50);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-dropdown-link span {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* Mobile menu button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--spacing-2);
    cursor: pointer;
    color: var(--color-text);
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: var(--spacing-4);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        align-items: stretch;
    }

    .nav.open {
        display: flex;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        width: 100%;
        justify-content: flex-start;
    }

    .nav-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 0 var(--spacing-6);
        min-width: 0;
        display: none;
    }

    .nav-item:hover .nav-dropdown,
    .nav-item:focus-within .nav-dropdown {
        display: block;
    }

    .menu-toggle {
        display: block;
    }
}

/* ===========================================
   BREADCRUMBS
   =========================================== */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.breadcrumbs a {
    color: var(--color-text-muted);
}

.breadcrumbs a:hover {
    color: var(--color-primary);
}

.breadcrumbs span:not(:last-child)::after {
    content: '/';
    margin-left: var(--spacing-2);
    color: var(--color-gray-300);
}

/* ===========================================
   CARDS
   =========================================== */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    padding: var(--spacing-6);
    transition: all var(--transition-normal);
}

.card-hover:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.card-header {
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0;
}

.card-description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-2);
    margin-bottom: 0;
}

/* Calculator category cards */
.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-8);
    text-decoration: none;
    color: var(--color-text);
}

.category-card:hover {
    text-decoration: none;
}

.category-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-4);
}

.category-icon.property {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.category-icon.savings {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
}

.category-icon.debt {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
}

.category-icon.income {
    background: linear-gradient(135deg, #dbeafe, #93c5fd);
}

/* Calculator link cards */
.calculator-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    text-decoration: none;
    color: var(--color-text);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.calculator-card:hover {
    background: var(--color-gray-50);
    text-decoration: none;
}

.calculator-card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
    background: var(--color-primary-lightest);
}

.calculator-card-content {
    flex: 1;
}

.calculator-card-title {
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-1);
}

.calculator-card-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ===========================================
   FORM ELEMENTS
   =========================================== */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-700);
}

.form-hint {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-1);
}

.form-input,
.form-select {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-lightest);
}

.form-input::placeholder {
    color: var(--color-gray-400);
}

/* Input with prefix/suffix */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-prefix,
.input-suffix {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-4);
    background: var(--color-gray-100);
    border: 2px solid var(--color-border);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-medium);
}

.input-prefix {
    border-right: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.input-suffix {
    border-left: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.input-group .form-input {
    border-radius: 0;
}

.input-group .form-input:first-child {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.input-group .form-input:last-child {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

/* Input with prefix */
.input-group .input-prefix+.form-input {
    border-left: none;
}

.input-group .form-input:has(+ .input-suffix) {
    border-right: none;
}

/* Radio and checkbox groups */
.radio-group,
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
}

.radio-option,
.checkbox-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.radio-option:has(input:checked),
.checkbox-option:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-lightest);
}

.radio-option:hover,
.checkbox-option:hover {
    border-color: var(--color-primary-light);
}

.radio-option input,
.checkbox-option input {
    accent-color: var(--color-primary);
}

/* Compact checkboxes for space-saving layouts */
.compact-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-sm);
}

.compact-checkbox:hover {
    border-color: var(--color-primary-light);
    background: var(--color-gray-50);
}

.compact-checkbox:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-primary-lightest);
}

.compact-checkbox input {
    accent-color: var(--color-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

.compact-checkbox-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.compact-checkbox-text small {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 1px;
}

/* Make checkbox grid responsive */
@media (max-width: 600px) {
    .checkbox-grid {
        grid-template-columns: 1fr !important;
    }
}

/* Range slider */
.form-range {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-gray-200);
    outline: none;
    -webkit-appearance: none;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    cursor: pointer;
    border: 3px solid var(--color-surface);
    box-shadow: var(--shadow-md);
}

.form-range::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    cursor: pointer;
    border: 3px solid var(--color-surface);
    box-shadow: var(--shadow-md);
}

/* ===========================================
   TIPS & NEWS TICKER
   =========================================== */
.ticker-container {
    display: flex;
    align-items: center;
    width: 100%;
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-surface) 100%);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-6) 0;
}

.ticker-track-wrapper {
    flex: 1;
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
    cursor: grab;
    user-select: none;
}

.ticker-track-wrapper:active {
    cursor: grabbing;
}

.ticker-track {
    display: flex;
    gap: var(--spacing-8);
    transition: transform 0.3s ease-out;
    width: max-content;
}

.ticker-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-3);
    flex-shrink: 0;
    width: 280px;
    padding: var(--spacing-5);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.ticker-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.ticker-badge {
    flex-shrink: 0;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.ticker-badge.new {
    background: var(--color-primary-lightest);
    color: var(--color-primary);
}

.ticker-badge.tip {
    background: #d1fae5;
    color: #065f46;
}

.ticker-badge.update {
    background: #fef3c7;
    color: #92400e;
}

.ticker-text {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: var(--line-height-relaxed);
}

.ticker-arrow {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    margin: 0 var(--spacing-4);
    box-shadow: var(--shadow-sm);
}

.ticker-arrow:hover {
    background: var(--color-surface);
    color: var(--color-primary);
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.ticker-arrow:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .ticker-item {
        width: 240px;
        padding: var(--spacing-4);
    }

    .ticker-arrow {
        width: 44px;
        height: 44px;
        margin: 0 var(--spacing-2);
    }

    .ticker-container {
        padding: var(--spacing-4) 0;
    }
}

/* ===========================================
   BUTTONS
   =========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-text);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ===========================================
   FEATURE CARDS (Why Use Section)
   =========================================== */
.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.feature-card h4 {
    margin-bottom: var(--spacing-2);
}

.feature-card p {
    margin-bottom: 0;
}

/* ===========================================
   HOMEPAGE REDESIGN STYLES
   =========================================== */

/* Popular Calculator Container */
.popular-container {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    justify-content: center;
    gap: var(--spacing-4);
    overflow: hidden;
    padding-top: var(--spacing-2);
    /* Space for hover lift effect */
}

/* Popular Calculator Cards */
.popular-card {
    flex: 1 1 0;
    min-width: 0;
    max-width: 260px;
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-5);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    transition: all var(--transition-normal);
}

/* Hide cards progressively as screen gets smaller */
/* Below 900px: hide 4th card (show 3) */
@media (max-width: 900px) {
    .popular-card:nth-child(n+4) {
        display: none;
    }
}

/* Below 650px: hide 3rd card (show 2) */
@media (max-width: 650px) {
    .popular-card:nth-child(n+3) {
        display: none;
    }
}

/* Below 450px: hide 2nd card (show 1) */
@media (max-width: 450px) {
    .popular-card:nth-child(n+2) {
        display: none;
    }

    .popular-card {
        max-width: 100%;
    }
}

.popular-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
    text-decoration: none;
    color: var(--color-text);
}

/* Smaller icons in popular cards */
.popular-card .category-icon {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-xl);
    margin-bottom: 0;
    flex-shrink: 0;
}

.popular-card-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--color-gray-900);
}

/* All Calculator Category Cards */
.all-calc-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    height: 100%;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
}

.all-calc-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.all-calc-card-header {
    padding: var(--spacing-5);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    border-bottom: 1px solid var(--color-border);
}

.all-calc-card-header-text {
    flex: 1;
}

.all-calc-card-icon {
    font-size: var(--font-size-xl);
}

.all-calc-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin: 0;
}

.all-calc-card-header .all-calc-description {
    margin: var(--spacing-1) 0 0 0;
}

.all-calc-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.all-calc-card-body {
    padding: var(--spacing-5);
    flex: 1;
}

.calc-link-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.calc-link {
    display: block;
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    text-decoration: none;
    padding: var(--spacing-3);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.calc-link:hover {
    color: var(--color-primary-dark);
    background: var(--color-gray-50);
    text-decoration: none;
}

.calc-link-description {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-normal);
    margin-top: 2px;
}

/* ===========================================
   CALCULATOR GRID VIEW (App Store Style)
   =========================================== */

/* Section Controls - Filters + View Toggle */
.calc-section-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
}

/* Search Input */
.calc-search {
    position: relative;
    flex: 0 1 240px;
}

.calc-search-icon {
    position: absolute;
    left: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.calc-search-input {
    width: 100%;
    padding: var(--spacing-2) var(--spacing-4) var(--spacing-2) calc(var(--spacing-3) + 24px);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-gray-50);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.calc-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-surface);
    box-shadow: 0 0 0 3px var(--color-primary-lightest);
}

.calc-search-input::placeholder {
    color: var(--color-text-muted);
}

/* Category Filter Pills */
.calc-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.calc-filter-btn {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    background: var(--color-gray-100);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.calc-filter-btn:hover {
    background: var(--color-gray-200);
    border-color: var(--color-gray-300);
}

.calc-filter-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* View Toggle Buttons */
.view-toggle {
    display: flex;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}

.view-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.view-toggle-btn:hover {
    color: var(--color-text);
}

.view-toggle-btn.active {
    background: var(--color-surface);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* Grid View Container */
.calc-grid-view {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-4);
}

/* Individual Calculator Tile */
.calc-tile {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    text-decoration: none;
    color: var(--color-text);
    transition: all var(--transition-normal);
}

.calc-tile:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
    text-decoration: none;
}

.calc-tile.hidden {
    display: none;
}

/* Tile Icon */
.calc-tile-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.calc-tile-icon.property {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.calc-tile-icon.savings {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
}

.calc-tile-icon.debt {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
}

.calc-tile-icon.income {
    background: linear-gradient(135deg, #dbeafe, #93c5fd);
}

/* Tile Content */
.calc-tile-content {
    flex: 1;
    min-width: 0;
}

.calc-tile-name {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    color: var(--color-gray-900);
    margin-bottom: 2px;
}

.calc-tile-desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    line-height: var(--line-height-normal);
}

/* Responsive Grid */
@media (max-width: 1024px) {
    .calc-grid-view {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .calc-grid-view {
        grid-template-columns: repeat(2, 1fr);
    }

    .calc-section-controls {
        justify-content: center;
    }

    .calc-filters {
        justify-content: center;
    }
}

@media (max-width: 500px) {
    .calc-grid-view {
        grid-template-columns: 1fr;
    }
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

/* ===========================================
   RESULTS & OUTPUT
   =========================================== */
.results-section {
    margin-top: var(--spacing-8);
}

.result-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    text-align: center;
}

.result-label {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin-bottom: var(--spacing-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
}

.result-secondary {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin-top: var(--spacing-2);
}

/* Results grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-4);
    margin-top: var(--spacing-6);
}

.result-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    text-align: center;
}

.result-item-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-1);
}

.result-item-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
}

/* ===========================================
   TABLES
   =========================================== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.data-table th,
.data-table td {
    padding: var(--spacing-3) var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    font-weight: var(--font-weight-semibold);
    background: var(--color-gray-50);
    color: var(--color-gray-700);
}

.data-table tr:hover td {
    background: var(--color-gray-50);
}

.data-table td.amount {
    text-align: right;
    font-family: var(--font-family-mono);
}

/* Pence/decimal styling for currency amounts */
.pence {
    font-size: 0.75em;
    color: var(--color-text-muted);
    font-weight: normal;
}

/* Right-align numeric column headers to match content */
.data-table th:not(:first-child) {
    text-align: right;
}

.table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.table-container .data-table th:first-child,
.table-container .data-table td:first-child {
    padding-left: 2rem;
}

/* Expandable Table Rows */
.expandable-row .expand-arrow {
    display: inline-block;
    width: 1rem;
    color: var(--color-text-muted);
    transition: transform 0.2s ease;
    /* Positioned absolutely in HTML to prevent text shift */
}

.expandable-row.expanded .expand-arrow {
    transform: rotate(90deg);
    color: var(--color-primary);
}

.tax-band-row {
    display: none;
    background-color: var(--color-gray-50);
}

.tax-band-row.show {
    display: table-row;
}

.tax-band-row td {
    border-top: 1px dashed var(--color-gray-200);
}

.tax-band-row:first-of-type td {
    border-top: none;
    /* First detail row shouldn't have border against parent */
}

/* ===========================================
   CHARTS
   =========================================== */
.chart-container {
    position: relative;
    margin: var(--spacing-6) 0;
    padding: var(--spacing-4);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.chart-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-4);
    text-align: center;
}

.chart-wrapper {
    position: relative;
    height: 300px;
}

@media (max-width: 768px) {
    .chart-wrapper {
        height: 250px;
    }
}

/* ===========================================
   TABS (for chart switching)
   =========================================== */
.tabs {
    display: flex;
    gap: var(--spacing-1);
    padding: var(--spacing-1);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-6);
}

.tab {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.tab:hover {
    color: var(--color-text);
}

.tab.active {
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Chart legend */
.chart-legend {
    display: flex;
    justify-content: center;
    gap: var(--spacing-6);
    padding-top: var(--spacing-4);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-sm);
}

.legend-dot.principal {
    background: var(--color-secondary);
}

.legend-dot.interest {
    background: var(--color-warning);
}

/* ===========================================
   COLLAPSIBLE SECTIONS
   =========================================== */
.collapsible {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    overflow: hidden;
}

.collapsible-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: background var(--transition-fast);
}

.collapsible-header:hover {
    background: var(--color-gray-100);
}

.collapsible-icon {
    transition: transform var(--transition-fast);
}

.collapsible.open .collapsible-icon {
    transform: rotate(180deg);
}

.collapsible-content {
    display: none;
    padding: var(--spacing-4);
}

.collapsible.open .collapsible-content {
    display: block;
}

/* ===========================================
   ALERTS & NOTICES
   =========================================== */
.alert {
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.alert-info {
    background: var(--color-primary-lightest);
    border: 1px solid #93c5fd;
    color: var(--color-primary-dark);
}

.alert-success {
    background: #dcfce7;
    border: 1px solid #86efac;
    color: #166534;
}

.alert-warning {
    background: #fef3c7;
    border: 1px solid #fcd34d;
    color: #92400e;
}

.alert-danger {
    background: #fee2e2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-12) 0 var(--spacing-6);
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-6) var(--spacing-8);
    margin-bottom: var(--spacing-8);
    max-width: 900px;
}

@media (min-width: 900px) {
    .footer-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.footer-section h4 {
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-4);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-white);
    text-decoration: none;
}

.footer-bottom {
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-gray-700);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-4);
    font-size: var(--font-size-sm);
}

.disclaimer {
    max-width: 600px;
    color: var(--color-gray-500);
    font-size: var(--font-size-xs);
    line-height: var(--line-height-relaxed);
}

/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.04) 0%, transparent 30%),
        linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-10) 0;
    text-align: center;
}

.hero h1 {
    color: var(--color-white);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-3);
}

.hero p {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    margin: 0 auto;
}

.hero .btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
}

.hero .btn-primary:hover {
    background: var(--color-gray-100);
}

.hero .btn-outline {
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--color-white);
}

.hero .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-8) 0;
    }

    .hero h1 {
        font-size: var(--font-size-2xl);
    }

    .hero p {
        font-size: var(--font-size-base);
    }
}

/* ===========================================
   PAGE HEADER (Calculator pages)
   =========================================== */
.page-header {
    background: var(--color-surface);
    padding: var(--spacing-8) 0;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    margin-bottom: var(--spacing-2);
}

.page-header p {
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    margin-bottom: 0;
}

/* ===========================================
   TWO-COLUMN CALCULATOR LAYOUT
   =========================================== */
.calculator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
    align-items: start;
}

@media (max-width: 1024px) {
    .calculator-layout {
        grid-template-columns: 1fr;
    }
}

.calculator-inputs,
.calculator-results {
    position: sticky;
    top: calc(70px + var(--spacing-6));
}

@media (max-width: 1024px) {

    .calculator-inputs,
    .calculator-results {
        position: static;
    }
}

/* ===========================================
   PRINT STYLES
   =========================================== */
@media print {

    .header,
    .footer,
    .nav,
    .breadcrumbs,
    .btn,
    .no-print {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        border: 1px solid #ccc;
        box-shadow: none;
    }

    .result-card {
        background: #f0f0f0;
        color: black;
    }

    .calculator-layout {
        display: block;
    }

    .calculator-results {
        margin-top: 2rem;
    }
}

/* ===========================================
   UTILITY CLASSES
   =========================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none !important;
}

.mt-2 {
    margin-top: var(--spacing-2);
}

.mt-4 {
    margin-top: var(--spacing-4);
}

.mt-6 {
    margin-top: var(--spacing-6);
}

.mt-8 {
    margin-top: var(--spacing-8);
}

.mb-2 {
    margin-bottom: var(--spacing-2);
}

.mb-4 {
    margin-bottom: var(--spacing-4);
}

.mb-6 {
    margin-bottom: var(--spacing-6);
}

.mb-8 {
    margin-bottom: var(--spacing-8);
}

.p-4 {
    padding: var(--spacing-4);
}

.p-6 {
    padding: var(--spacing-6);
}