/* 
   Hypotheca.fr - Premium Financial Services Theme
   Apple-inspired minimalist + premium finance aesthetic
*/

:root {
    /* Color Palette */
    --color-primary: #0f1b2d;
    /* Deep navy */
    --color-background: #f6f3ee;
    /* Warm cream */
    --color-accent: #c9a45b;
    /* Soft gold */
    --color-accent-hover: #b08d4b;
    --color-text-main: #0f1b2d;
    --color-text-secondary: #6b7280;
    --color-white: #ffffff;
    --color-border: #e5e7eb;
    --color-error: #ef4444;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";

    /* Spacing */
    --spacing-section-desktop: 80px;
    --spacing-section-mobile: 48px;
    --spacing-large: 40px;
    --spacing-medium: 24px;
    --spacing-small: 16px;
    --spacing-xs: 8px;

    /* Border Radius */
    --radius-button: 10px;
    --radius-card: 16px;
    --radius-input: 8px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background);
    color: var(--color-text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    margin-bottom: var(--spacing-medium);
    font-weight: 700;
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.02em;
}

/* 48px */
h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

/* 32px */
h3 {
    font-size: 1.5rem;
}

/* 24px */
p {
    margin-bottom: var(--spacing-medium);
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-medium);
}

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

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

.visible-mobile {
    display: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-button);
    cursor: pointer;
    transition: all var(--transition-medium);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(201, 164, 91, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: rgba(15, 27, 45, 0.05);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(246, 243, 238, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: padding var(--transition-medium);
}

.header.scrolled {
    padding: 12px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.03em;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--color-text-main);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-medium);
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Nav Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.bar {
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    padding-top: 140px;
    /* Header height + space */
    padding-bottom: var(--spacing-section-desktop);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-image: url('../images/hero.png');
    background-size: cover;
    background-position: center;
    z-index: 1;
    mask-image: linear-gradient(to left, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%);
    -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 1, 0.8) 20%, rgba(0, 0, 0, 0) 100%);
    opacity: 0.9;
}

.hero h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-medium);
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-large);
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-medium);
    margin-bottom: var(--spacing-large);
}

.trust-bullets {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-small);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-main);
}

.icon-check {
    width: 20px;
    height: 20px;
    fill: var(--color-accent);
    flex-shrink: 0;
}

/* Trust Strip */
.trust-strip {
    background-color: var(--color-white);
    padding: var(--spacing-section-desktop) 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-large);
    text-align: center;
}

.trust-card {
    padding: var(--spacing-medium);
}

.trust-icon-lg {
    width: 48px;
    height: 48px;
    fill: var(--color-primary);
    margin-bottom: var(--spacing-medium);
}

/* Solutions Section */
.solutions {
    padding: var(--spacing-section-desktop) 0;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-large);
}

.solution-card {
    background-color: var(--color-white);
    padding: var(--spacing-large);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--color-accent);
}

.solution-title {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.solution-text {
    flex-grow: 1;
    color: var(--color-text-secondary);
}

.solution-examples {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin: var(--spacing-medium) 0;
    padding-top: var(--spacing-medium);
    border-top: 1px solid var(--color-border);
}

.solution-link {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Process Section */
.process {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-section-desktop) 0;
}

.process h2 {
    color: var(--color-white);
}

.timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 60px;
    flex-wrap: wrap;
    gap: 20px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.2);
    z-index: 0;
}

.process-step {
    position: relative;
    z-index: 1;
    width: 18%;
    text-align: center;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto var(--spacing-medium);
    font-size: 1.2rem;
    box-shadow: 0 0 0 8px var(--color-primary);
}

.step-text {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Transparency Block */
.transparency {
    padding: var(--spacing-section-desktop) 0;
    background-color: var(--color-white);
}

.transparency-box {
    background-color: var(--color-background);
    border-radius: var(--radius-card);
    padding: var(--spacing-large);
    border-left: 4px solid var(--color-accent);
}

/* Accordion */
.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    border-bottom: 1px solid var(--color-border);
}

.accordion-header {
    width: 100%;
    text-align: left;
    padding: 24px 0;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-icon {
    width: 24px;
    height: 24px;
    position: relative;
    transition: transform 0.3s;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background-color: var(--color-accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.accordion-icon::before {
    width: 16px;
    height: 2px;
}

.accordion-icon::after {
    width: 2px;
    height: 16px;
    transition: height 0.3s;
}

.accordion-header[aria-expanded="true"] .accordion-icon::after {
    height: 0;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    color: var(--color-text-secondary);
}

.accordion-inner {
    padding-bottom: 24px;
}

/* Expandable Details Modern Style */
summary.modern-summary {
    list-style: none;
    /* Hide default arrow */
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--color-accent);
    padding: 12px 24px;
    border: 1px solid var(--color-accent);
    border-radius: 50px;
    /* Pill shape */
    transition: all var(--transition-medium);
    background-color: transparent;
}

summary.modern-summary:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
}

summary.modern-summary::-webkit-details-marker {
    display: none;
}

.icon-chevron {
    width: 16px;
    height: 16px;
    fill: currentColor;
    transition: transform 0.3s ease;
}

details[open] .icon-chevron {
    transform: rotate(180deg);
}

/* Add generic animation for details opening */
details[open] .details-content {
    animation: fadeIn 0.4s ease-out;
}

/* Form Styles */
.form-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-white);
    padding: 40px;
    border-radius: var(--radius-card);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.progress-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-border);
    z-index: 0;
}

.progress-step {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-border);
    color: var(--color-white);
    /* Changed to white for active/completed */
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    position: relative;
    z-index: 1;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.progress-step.active,
.progress-step.completed {
    background-color: var(--color-accent);
}

.progress-step.completed::after {
    content: '✓';
    font-size: 14px;
}

.form-step {
    display: none;
    animation: fadeIn 0.4s;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(201, 164, 91, 0.1);
}

.form-helper {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 6px;
}

.form-error {
    color: var(--color-error);
    font-size: 0.85rem;
    margin-top: 4px;
    display: none;
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

.chip.selected {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.action-row {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 20px;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer h4 {
    color: var(--color-white);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer ul li {
    margin-bottom: 12px;
}

.footer a:hover {
    color: var(--color-accent);
}

.footer-compliance {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    margin-bottom: 40px;
    font-size: 0.85rem;
}

.credit-warning {
    background-color: rgba(255, 255, 255, 0.05);
    /* very subtle on dark bg */
    padding: 16px;
    margin-top: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
}

.credit-warning-light {
    background-color: #fce8e8;
    /* Light red/alert bg for light mode if used */
    padding: 16px;
    text-align: center;
    border: 1px solid #ebaeb0;
    color: #9c2b2e;
    font-weight: 500;
}

.sticky-bottom-mobile {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--color-white);
    padding: 16px;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.05);
    z-index: 999;
}

/* Animation classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsiveness */
@media (max-width: 900px) {
    .timeline::before {
        display: none;
    }

    .timeline {
        flex-direction: column;
        gap: 40px;
        margin-top: 0;
    }

    .process-step {
        width: 100%;
        display: flex;
        text-align: left;
        gap: 20px;
    }

    .step-number {
        margin: 0;
        flex-shrink: 0;
    }

    .hero-bg {
        opacity: 0.15;
        width: 100%;
        mask-image: none;
        -webkit-mask-image: none;
    }

    .hero-content {
        max-width: 100%;
    }

    h1 {
        font-size: 2.25rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-section-desktop: 48px;
    }

    .header {
        padding: 12px 0;
    }

    .nav-links {
        display: none;
    }

    /* Add JS toggle */
    .mobile-toggle {
        display: flex;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-white);
        padding: 24px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

    .hero-actions {
        flex-direction: column;
    }

    .sticky-bottom-mobile {
        display: block;
    }

    .footer {
        padding-bottom: 80px;
    }

    /* Space for sticky CTA */

    .visible-mobile {
        display: block;
    }

    .hidden-mobile {
        display: none;
    }
}

/* CEO Portrait in About Page */
.ceo-portrait {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 50%;
    /* Circle is standard for team/profile pics in modern UI */
    border: 2px solid var(--color-white);
    /* White border for clean separation */
    margin: 0 auto 16px auto;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    filter: brightness(0.95);
    /* Slightly muted by default */
}

.ceo-portrait:hover {
    filter: brightness(1.05);
    /* Brighter on hover */
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
    .ceo-portrait {
        width: 160px;
        height: 160px;
        margin-bottom: 24px;
    }
}