/*
  Plextech Website Styles
  - Responsive, accessible, clean typography
  - Consistent spacing scale and color system
*/

:root {
    --brand-50: #eef6ff;
    --brand-100: #d8ebff;
    --brand-200: #b8dbff;
    --brand-300: #8fc5ff;
    --brand-400: #5ea9ff;
    --brand-500: #2c8bff;
    --brand-600: #166fe0;
    --brand-700: #1057b3;
    --brand-800: #0a3f80;
    --brand-900: #072a55;
    --bg: #ffffff;
    --text: #111827;
    /* Gray-900 */
    --muted: #6b7280;
    /* Gray-500 */
    --border: #e5e7eb;
    /* Gray-200 */
    --surface: #f9fafb;
    /* Gray-50 */
    --radius: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.08);
    --maxw: 1120px;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    /* Animation variables */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --ease-out-cubic: cubic-bezier(0.33, 1, 0.68, 1);
    --ease-in-out-cubic: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}


/* Keyframe animations */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInFromLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

body {
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

img {
    max-width: 100%;
    display: block;
    transition: transform var(--transition-normal);
}

img:hover {
    transform: scale(1.02);
}

.hero-image img {
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
}

.hero-image img:hover {
    transform: scale(1.02) translateY(-5px);
    filter: drop-shadow(0 15px 40px rgba(0, 0, 0, 0.15));
}

a {
    color: var(--brand-700);
    text-decoration: none;
    transition: color var(--transition-normal), transform var(--transition-fast);
}

a:hover {
    color: var(--brand-800);
    text-decoration: underline;
    transform: translateY(-1px);
}

.container {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

header.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
    animation: slideInFromLeft 0.6s var(--ease-out-cubic);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 700;
    font-size: 18px;
}

.brand .logo {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    animation: float 3s ease-in-out infinite;
}

.brand .logo:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-md);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-links a {
    color: var(--text);
    font-weight: 600;
    padding: 8px 10px;
    border-radius: 8px;
    transition: all var(--transition-normal);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--brand-600);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-links a.active,
.nav-links a:hover {
    background: var(--surface);
    text-decoration: none;
    transform: translateY(-2px);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 80%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    border-radius: 999px;
    padding: 10px 16px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--brand-600);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--brand-700);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(22, 111, 224, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--brand-700);
    border-color: var(--brand-300);
}

.btn-outline:hover {
    background: var(--brand-50);
    transform: translateY(-2px) scale(1.02);
    border-color: var(--brand-500);
}

.hero {
    padding: var(--space-16) 0 var(--space-12);
    background: radial-gradient(80% 80% at 50% 0%, var(--brand-50), transparent 70%);
    animation: fadeIn 0.8s var(--ease-out-cubic);
}

.hero .pill {
    animation: fadeInUp 0.6s var(--ease-out-cubic) 0.2s both;
}

.hero h1 {
    animation: fadeInUp 0.8s var(--ease-out-cubic) 0.4s both;
}

.hero p {
    animation: fadeInUp 0.8s var(--ease-out-cubic) 0.6s both;
}

.hero .actions {
    animation: fadeInUp 0.8s var(--ease-out-cubic) 0.8s both;
}

.hero h1 {
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1.15;
    margin: 0;
}

.hero p {
    font-size: 18px;
    color: var(--muted);
    max-width: 60ch;
}

.hero .actions {
    margin-top: var(--space-6);
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.section {
    padding: var(--space-12) 0;
}

.section h2 {
    font-size: 28px;
    margin: 0 0 var(--space-4);
}

.section p.lead {
    color: var(--muted);
    margin-top: 0;
}

.grid {
    display: grid;
    gap: var(--space-6);
}

.grid .card:nth-child(1) {
    animation-delay: 0.1s;
}

.grid .card:nth-child(2) {
    animation-delay: 0.2s;
}

.grid .card:nth-child(3) {
    animation-delay: 0.3s;
}

.grid .card:nth-child(4) {
    animation-delay: 0.4s;
}

.grid .card:nth-child(5) {
    animation-delay: 0.5s;
}

.grid .card:nth-child(6) {
    animation-delay: 0.6s;
}

.grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 900px) {
    .grid.cols-3,
    .grid.cols-2 {
        grid-template-columns: 1fr;
    }
}

.card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: var(--space-6);
    transition: all var(--transition-normal);
    animation: scaleIn 0.6s var(--ease-out-cubic);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--brand-200);
}

.card h3 {
    margin-top: 0;
    margin-bottom: var(--space-2);
}

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

footer.site-footer {
    padding: var(--space-10) 0;
    border-top: 1px solid var(--border);
    background: white;
    margin-top: var(--space-12);
}

footer small {
    color: var(--muted);
}


/* Forms */

label {
    font-weight: 600;
    display: block;
    margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: white;
    color: var(--text);
    transition: all var(--transition-normal);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--brand-500);
    box-shadow: 0 0 0 3px rgba(22, 111, 224, 0.1);
    transform: translateY(-1px);
}

textarea {
    min-height: 140px;
    resize: vertical;
}

.form-row {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 760px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-actions {
    display: flex;
    gap: var(--space-4);
    align-items: center;
    margin-top: var(--space-6);
}

.help {
    color: var(--muted);
    font-size: 14px;
}


/* Header: mobile */

.menu-toggle {
    display: none;
}

@media (max-width: 760px) {
    .nav-links {
        display: none;
    }
    .menu-toggle {
        display: inline-flex;
    }
    .nav.open .nav-links {
        display: flex;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: white;
        padding: var(--space-4) var(--space-6);
        border-bottom: 1px solid var(--border);
        animation: slideInFromLeft 0.3s var(--ease-out-cubic);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }
    .hero .grid.cols-2 {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-image {
        order: -1;
        margin-bottom: var(--space-6);
    }
}


/* Tables (for pricing) */

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    text-align: left;
    padding: 12px 10px;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--surface);
}


/* Utility */

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    font-weight: 600;
    color: var(--brand-800);
    transition: all var(--transition-normal);
    animation: pulse 2s ease-in-out infinite;
}

.pill:hover {
    transform: scale(1.05);
    background: var(--brand-50);
    border-color: var(--brand-300);
}

.center {
    text-align: center;
}


/* Animation utility classes */

.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s var(--ease-out-cubic) forwards;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s var(--ease-out-cubic) forwards;
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInFromLeft 0.6s var(--ease-out-cubic) forwards;
}

.slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    animation: slideInFromRight 0.6s var(--ease-out-cubic) forwards;
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    animation: scaleIn 0.6s var(--ease-out-cubic) forwards;
}


/* Scroll-triggered animations */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s var(--ease-out-cubic);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}


/* Loading states */

.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}


/* Success Modal */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius);
    padding: var(--space-8);
    max-width: 400px;
    width: 90%;
    text-align: center;
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.4s var(--ease-out-cubic);
}

.modal-icon::before {
    content: '✓';
    color: white;
    font-size: 32px;
    font-weight: bold;
}

.modal h3 {
    margin: 0 0 var(--space-3);
    color: var(--text);
    font-size: 24px;
}

.modal p {
    margin: 0 0 var(--space-6);
    color: var(--muted);
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
}

.modal-close {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.modal-close:hover {
    background: var(--border);
}