/* ============================================================
   AG Growth — Premium Corporate Design System
   Style: Refined editorial, luxury minimalism
   ============================================================ */

/* ——— CSS Custom Properties ——— */
:root {
    /* Colors */
    --color-bg: #f8f7f4;
    --color-bg-warm: #f0ede8;
    --color-dark: #0f172a;
    --color-dark-soft: #1e293b;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-muted: #94a3b8;
    --color-accent: #118EBC;
    --color-accent-light: #4DB8E0;
    --color-accent-dark: #0D6A8C;
    --color-white: #ffffff;
    --color-border: rgba(15, 23, 42, 0.08);
    --color-border-strong: rgba(15, 23, 42, 0.15);

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'SF Mono', Consolas, monospace;

    /* Font sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;
    --text-7xl: 6rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    --space-40: 10rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Layout */
    --container-max: 1280px;
    --container-narrow: 960px;
    --header-height: 80px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

/* ——— Typography ——— */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.15;
    color: var(--color-dark);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }

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

p:last-child {
    margin-bottom: 0;
}

.text-lead {
    font-size: var(--text-xl);
    line-height: 1.6;
    color: var(--color-text-light);
}

.text-small {
    font-size: var(--text-sm);
    color: var(--color-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
}

/* ——— Layout ——— */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-narrow);
}

.section {
    padding: var(--space-32) 0;
    position: relative;
}

.section-compact {
    padding: var(--space-20) 0;
}

.section-dark {
    background-color: var(--color-dark);
    color: var(--color-bg);
}

.section-dark h1,
.section-dark h2,
.section-dark h3 {
    color: var(--color-white);
}

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

/* ——— Decorative dividers ——— */
.divider {
    width: 60px;
    height: 1px;
    background: var(--color-accent);
    margin: var(--space-8) 0;
}

.divider-center {
    margin-left: auto;
    margin-right: auto;
}

.divider-wide {
    width: 100%;
    background: var(--color-border-strong);
}

/* ——— Section label ——— */
.section-label {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-4);
}

/* ——— Header ——— */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
    background: rgba(248, 247, 244, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--color-border);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ——— Logo ——— */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-dark);
    letter-spacing: -0.02em;
}

.logo img {
    height: 22px;
    width: auto;
    display: block;
}

.logo-mark {
    color: var(--color-accent);
    font-weight: 700;
}

.logo-text {
    font-weight: 400;
}

/* ——— Navigation ——— */
.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    position: relative;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.02em;
    padding: var(--space-2) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base), left var(--transition-base);
}

.nav-link:hover::after,
.nav-item.active .nav-link::after {
    width: 100%;
    left: 0;
}

.nav-link:hover {
    color: var(--color-dark);
}

.nav-item.active .nav-link {
    color: var(--color-dark);
    font-weight: 600;
}

/* ——— Header actions ——— */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.lang-switch {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-muted);
    border: 1px solid var(--color-border-strong);
    padding: var(--space-1) var(--space-3);
    transition: all var(--transition-fast);
}

.lang-switch:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: var(--color-dark);
    transition: all var(--transition-base);
}

/* ——— Buttons ——— */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: var(--space-3) var(--space-6);
    border: 1px solid var(--color-accent);
    background: transparent;
    color: var(--color-accent);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-accent);
    transform: translateX(-101%);
    transition: transform var(--transition-slow);
    z-index: -1;
}

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

.btn:hover::before {
    transform: translateX(0);
}

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

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

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

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

.btn-dark::before {
    background: var(--color-dark-soft);
}

.btn-dark:hover {
    border-color: var(--color-dark-soft);
}

.btn-large {
    padding: var(--space-4) var(--space-10);
    font-size: var(--text-base);
}

/* ——— Hero ——— */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%230f172a' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-label {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-6);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
    font-size: clamp(var(--text-4xl), 6vw, var(--text-7xl));
    font-weight: 500;
    line-height: 1.05;
    color: var(--color-dark);
    margin-bottom: var(--space-6);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s 0.4s forwards;
}

.hero-title em {
    font-style: italic;
    color: var(--color-accent);
}

.hero-lead {
    font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
    line-height: 1.7;
    color: var(--color-text-light);
    max-width: 600px;
    margin-bottom: var(--space-10);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 0.6s forwards;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s 0.8s forwards;
}

.hero-actions .btn {
    z-index: 1;
}

/* ——— Scroll indicator ——— */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    opacity: 0;
    animation: fadeUp 0.8s 1.2s forwards;
}

.scroll-indicator span {
    font-size: var(--text-xs);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s infinite;
}

/* ——— Content grids ——— */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-16);
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

/* ——— Cards ——— */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    padding: var(--space-8);
    transition: all var(--transition-base);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--color-accent);
    transition: height var(--transition-slow);
}

.card:hover {
    border-color: var(--color-border-strong);
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.06);
}

.card:hover::before {
    height: 100%;
}

.card-icon {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
    color: var(--color-accent);
}

.card-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
    color: var(--color-dark);
}

.card-text {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ——— Service detail blocks ——— */
.service-block {
    padding: var(--space-12) 0;
    border-bottom: 1px solid var(--color-border);
}

.service-block:last-child {
    border-bottom: none;
}

.service-block-header {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-12);
    align-items: start;
}

.service-block-number {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-2);
}

.service-block-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.service-block-desc {
    font-size: var(--text-lg);
    color: var(--color-text-light);
    margin-bottom: var(--space-6);
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
}

.benefits-list li {
    position: relative;
    padding-left: var(--space-6);
    font-size: var(--text-sm);
    color: var(--color-text);
}

.benefits-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* ——— Package cards ——— */
.package-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    padding: var(--space-10);
    position: relative;
    transition: all var(--transition-base);
}

.package-card.featured {
    border-color: var(--color-accent);
    box-shadow: 0 20px 60px rgba(184, 149, 78, 0.08);
}

.package-card.featured::before {
    content: 'POPULAIRE';
    position: absolute;
    top: -1px;
    right: var(--space-8);
    background: var(--color-accent);
    color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: var(--space-1) var(--space-4);
}

.package-name {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-2);
}

.package-desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: var(--space-6);
    min-height: 3em;
}

.package-features {
    margin-bottom: var(--space-8);
}

.package-features li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-text);
}

.package-features li:last-child {
    border-bottom: none;
}

/* ——— About page specific ——— */
.value-pillar {
    padding: var(--space-8);
    border-left: 2px solid var(--color-border);
    transition: border-color var(--transition-base);
}

.value-pillar:hover {
    border-left-color: var(--color-accent);
}

.value-pillar-number {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.value-pillar-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.value-pillar-text {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ——— Contact ——— */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-info-item {
    margin-bottom: var(--space-8);
}

.contact-info-label {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-2);
}

.contact-info-value {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    color: var(--color-dark);
}

.contact-info-value a {
    position: relative;
}

.contact-info-value a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.contact-info-value a:hover::after {
    width: 100%;
}

/* ——— Footer ——— */
.site-footer {
    background: var(--color-dark);
    color: var(--color-bg);
}

.footer-cta {
    padding: var(--space-24) 0;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-cta-label {
    font-family: var(--font-display);
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.footer-cta-sub {
    font-size: var(--text-lg);
    color: var(--color-muted);
    margin-bottom: var(--space-8);
}

.footer-main {
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--color-muted);
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-nav a {
    font-size: var(--text-sm);
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

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

.footer-contact-label {
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-3);
}

.footer-contact a {
    font-size: var(--text-sm);
    color: var(--color-white);
    position: relative;
}

.footer-contact a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.footer-contact a:hover::after {
    width: 100%;
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-xs);
    color: var(--color-muted);
}

/* ——— Animations ——— */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 1;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.4;
        transform: scaleY(0.6);
    }
}

/* Reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ——— Responsive ——— */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-block-header {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
}

@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-6xl: 3rem;
        --text-7xl: 3.5rem;
    }

    .section {
        padding: var(--space-20) 0;
    }

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

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-6);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }

    .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--space-4);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .benefits-list {
        grid-template-columns: 1fr;
    }
}