/* ========================================
   1. CSS Custom Properties
   ======================================== */
:root {
    --color-primary-dark: #2D1B69;
    --color-primary: #5B2D8E;
    --color-primary-light: #7B4FA2;
    --color-primary-pale: #E8DFF5;
    --color-text-dark: #1A1A2E;
    --color-text-muted: #6B7280;
    --color-text-light: #FFFFFF;
    --color-bg: #F9F7FC;
    --color-surface: #FFFFFF;
    --color-border: #E5E7EB;

    --font-heading: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;

    --navbar-height: 70px;
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
    list-style: none;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    line-height: 1.2;
    color: var(--color-text-dark);
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 2rem; font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 500; }
h4 { font-size: 1rem; font-weight: 600; }

/* ========================================
   3. Layout
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header p {
    color: var(--color-text-muted);
    margin-top: 0.75rem;
    font-size: 1.125rem;
}

/* ========================================
   4. Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    gap: 0.5rem;
}

.btn--sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

.btn--lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

.btn--full {
    width: 100%;
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}

.btn--primary:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
    color: var(--color-text-light);
}

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

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

.btn--outline-white {
    background: transparent;
    color: var(--color-text-light);
    border-color: rgba(255, 255, 255, 0.4);
}

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

.btn--outline-light {
    background: transparent;
    color: var(--color-text-light);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn--outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    color: var(--color-text-light);
}

/* ========================================
   5. Navbar
   ======================================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(45, 27, 105, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    transition: box-shadow var(--transition-normal);
}

.navbar--scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
}

.navbar__logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--color-text-light);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
}

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

.navbar__logo-icon {
    color: var(--color-primary-pale);
}

.navbar__menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.navbar__link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.navbar__link:hover,
.navbar__link--active {
    color: var(--color-text-light);
}

.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.navbar__toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-light);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* ========================================
   6. Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(123, 79, 162, 0.15);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(232, 223, 245, 0.08);
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 4rem 1.5rem;
}

.hero__title {
    color: var(--color-text-light);
    font-size: 2.75rem;
    margin-bottom: 1.25rem;
    line-height: 1.15;
}

.hero__subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ========================================
   7. Services Section
   ======================================== */
.services {
    padding: 5rem 0;
    background: var(--color-surface);
}

.services__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: 12px;
    padding: 2rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(45, 27, 105, 0.1);
}

.card__icon {
    color: var(--color-primary);
    margin-bottom: 1.25rem;
}

.card h3 {
    margin-bottom: 0.75rem;
}

.card p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========================================
   8. About Section
   ======================================== */
.about {
    padding: 5rem 0;
    background: var(--color-primary-pale);
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.about__text h2 {
    margin-bottom: 1.5rem;
}

.about__text p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    line-height: 1.7;
}

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

.about__image {
    display: flex;
    justify-content: center;
}

.about__image img {
    max-width: 360px;
    border-radius: 12px;
    background: var(--color-surface);
    padding: 1.5rem;
    box-shadow: 0 8px 24px rgba(45, 27, 105, 0.08);
}

/* ========================================
   9. Contact Section
   ======================================== */
.contact {
    padding: 5rem 0;
    background: var(--color-surface);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.375rem;
    color: var(--color-text-dark);
    font-size: 0.9375rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface);
    color: var(--color-text-dark);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(91, 45, 142, 0.15);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #dc2626;
}

.form-error {
    display: block;
    color: #dc2626;
    font-size: 0.8125rem;
    margin-top: 0.25rem;
    min-height: 1.2em;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
}

.form-status--success {
    background: #dcfce7;
    color: #166534;
}

.form-status--error {
    background: #fee2e2;
    color: #991b1b;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact__info-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact__info-item svg {
    flex-shrink: 0;
    color: var(--color-primary);
    margin-top: 0.25rem;
}

.contact__info-item h4 {
    margin-bottom: 0.25rem;
}

.contact__info-item p,
.contact__info-item a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

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

/* ========================================
   10. Footer
   ======================================== */
.footer {
    background: var(--color-primary-dark);
    padding: 3rem 0 0;
    color: rgba(255, 255, 255, 0.7);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
}

.footer__logo {
    display: inline-block;
    color: var(--color-text-light);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    text-decoration: none;
}

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

.footer__brand p {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.footer__links h4 {
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--color-text-light);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
}

/* ========================================
   11. Cookie Banner
   ======================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(26, 26, 46, 0.97);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: 1.25rem 0;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.cookie-banner[hidden] {
    display: block;
    transform: translateY(100%);
    pointer-events: none;
}

.cookie-banner.visible {
    transform: translateY(0);
    pointer-events: auto;
}

.cookie-banner__content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.cookie-banner__content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    line-height: 1.5;
}

.cookie-banner__content a {
    color: var(--color-primary-pale);
    text-decoration: underline;
}

.cookie-banner__content a:hover {
    color: var(--color-text-light);
}

.cookie-banner__actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* ========================================
   12. Legal Pages
   ======================================== */
.legal {
    padding: 2rem 0 5rem;
    min-height: calc(100vh - var(--navbar-height));
}

.legal h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.legal__updated {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.legal h2 {
    font-size: 1.35rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.legal p,
.legal li {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.legal ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal a {
    text-decoration: underline;
}

/* ========================================
   13. Scroll Reveal Animations
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========================================
   14. Responsive
   ======================================== */

/* Tablet */
@media (min-width: 768px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.25rem; }

    .hero__title {
        font-size: 3.5rem;
    }

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

    .about__grid {
        grid-template-columns: 1fr 1fr;
    }

    .contact__grid {
        grid-template-columns: 1.5fr 1fr;
    }

    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr;
    }

    .cookie-banner__content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .legal {
        padding: 3rem 0 5rem;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .hero__title {
        font-size: 4rem;
    }

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

/* Mobile nav */
@media (max-width: 767px) {
    .navbar__toggle {
        display: flex;
    }

    .navbar__menu {
        position: absolute;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(45, 27, 105, 0.98);
        padding: 1rem 1.5rem 1.5rem;
        gap: 0.5rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: -1;
    }

    .navbar__menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .navbar__menu li {
        width: 100%;
    }

    .navbar__link {
        display: block;
        padding: 0.75rem 0;
    }

    .navbar__link.btn {
        text-align: center;
        margin-top: 0.5rem;
    }

    .navbar__toggle.active .navbar__toggle-bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .navbar__toggle.active .navbar__toggle-bar:nth-child(2) {
        opacity: 0;
    }

    .navbar__toggle.active .navbar__toggle-bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}