/* ===================================
   CSS Variables & Reset
   =================================== */

:root {
    /* Colors */
    --color-primary: #0066FF;
    --color-primary-dark: #0052CC;
    --color-primary-light: #E6F0FF;

    --color-dark: #0A0A0B;
    --color-dark-secondary: #1A1A1D;
    --color-gray-900: #18181B;
    --color-gray-800: #27272A;
    --color-gray-700: #3F3F46;
    --color-gray-600: #52525B;
    --color-gray-500: #71717A;
    --color-gray-400: #A1A1AA;
    --color-gray-300: #D4D4D8;
    --color-gray-200: #E4E4E7;
    --color-gray-100: #F4F4F5;
    --color-white: #FFFFFF;

    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
    --gradient-dark: linear-gradient(180deg, #0A0A0B 0%, #1A1A1D 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --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-size-6xl: 3.75rem;

    /* 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;
    --spacing-24: 6rem;

    /* 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 -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

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

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ===================================
   Layout
   =================================== */

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

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-16);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-4);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
}

/* ===================================
   Header & Navigation
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    transition: var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--color-dark);
}

.logo-icon {
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

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

.nav-link-cta {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: var(--radius-lg);
    transition: background var(--transition-fast);
}

.nav-link-cta:hover {
    background: var(--color-gray-800);
    color: var(--color-white);
}

.nav-toggle {
    display: none;
    width: 32px;
    height: 32px;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.hamburger {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hamburger::before,
.hamburger::after {
    content: '';
    left: 0;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-full {
    width: 100%;
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    padding-top: calc(var(--header-height) + var(--spacing-20));
    padding-bottom: var(--spacing-24);
    background: linear-gradient(180deg, var(--color-gray-100) 0%, var(--color-white) 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-8);
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-4);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-shape {
    width: 400px;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    opacity: 0.15;
    animation: morph 8s ease-in-out infinite;
}

@keyframes morph {
    0%, 100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
    50% {
        border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
    }
}

/* ===================================
   Services Section
   =================================== */

.services {
    padding: var(--spacing-24) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-8);
}

.service-card {
    padding: var(--spacing-10);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-2xl);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    border-radius: var(--radius-xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-6);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-3);
}

.service-description {
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* ===================================
   Portfolio Section
   =================================== */

.portfolio {
    padding: var(--spacing-24) 0;
    background: var(--color-gray-100);
}

.portfolio-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.portfolio-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    padding: var(--spacing-12);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: var(--transition-base);
}

.portfolio-card:hover {
    box-shadow: var(--shadow-xl);
}

.portfolio-card:nth-child(even) {
    direction: rtl;
}

.portfolio-card:nth-child(even) > * {
    direction: ltr;
}

.portfolio-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.portfolio-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-3);
}

.portfolio-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--spacing-4);
    line-height: 1.3;
}

.portfolio-description {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-6);
    line-height: 1.7;
}

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

.portfolio-features li {
    position: relative;
    padding-left: var(--spacing-6);
    margin-bottom: var(--spacing-2);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

.portfolio-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.tech-tag {
    padding: var(--spacing-1) var(--spacing-3);
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-md);
}

.portfolio-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Portfolio Mockups */
.portfolio-mockup {
    width: 100%;
    max-width: 450px;
    background: var(--color-gray-100);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.portfolio-mockup.mockup-dark {
    background: var(--color-dark);
}

.mockup-header {
    display: flex;
    gap: var(--spacing-2);
    padding: var(--spacing-4);
    background: var(--color-gray-200);
}

.mockup-dark .mockup-header {
    background: var(--color-gray-800);
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--color-gray-400);
}

.mockup-dot:first-child {
    background: #EF4444;
}

.mockup-dot:nth-child(2) {
    background: #F59E0B;
}

.mockup-dot:nth-child(3) {
    background: #10B981;
}

.mockup-content {
    padding: var(--spacing-6);
    min-height: 250px;
}

/* Lead Platform Mockup */
.mockup-sidebar {
    width: 60px;
    float: left;
    margin-right: var(--spacing-4);
}

.mockup-nav-item {
    height: 8px;
    background: var(--color-gray-300);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-3);
}

.mockup-nav-item.active {
    background: var(--color-primary);
}

.mockup-main {
    overflow: hidden;
}

.mockup-chart {
    height: 100px;
    background: linear-gradient(90deg, var(--color-primary-light) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-4);
    opacity: 0.6;
}

.mockup-cards {
    display: flex;
    gap: var(--spacing-3);
}

.mockup-card {
    flex: 1;
    height: 60px;
    background: var(--color-gray-200);
    border-radius: var(--radius-md);
}

/* Ads Automation Mockup */
.mockup-rules {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.mockup-rule {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4);
    background: var(--color-gray-800);
    border-radius: var(--radius-md);
}

.mockup-dark .mockup-rule {
    background: var(--color-gray-900);
}

.rule-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--color-gray-700);
}

.rule-icon.weather {
    background: linear-gradient(135deg, #60A5FA 0%, #3B82F6 100%);
}

.rule-text {
    flex: 1;
    height: 8px;
    background: var(--color-gray-700);
    border-radius: var(--radius-sm);
}

.rule-status {
    width: 40px;
    height: 20px;
    background: var(--color-gray-700);
    border-radius: var(--radius-full);
}

.rule-status.active {
    background: var(--color-success);
}

/* ===================================
   About Section
   =================================== */

.about {
    padding: var(--spacing-24) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: start;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-4);
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: var(--spacing-10);
    margin-top: var(--spacing-10);
    padding-top: var(--spacing-10);
    border-top: 1px solid var(--color-gray-200);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1;
    margin-bottom: var(--spacing-2);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.value-card {
    padding: var(--spacing-8);
    background: var(--color-gray-100);
    border-radius: var(--radius-xl);
    transition: var(--transition-base);
}

.value-card:hover {
    background: var(--color-primary-light);
}

.value-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-2);
}

.value-description {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* ===================================
   Contact Section
   =================================== */

.contact {
    padding: var(--spacing-24) 0;
    background: var(--color-dark);
}

.contact .section-label,
.contact .section-title {
    color: var(--color-white);
}

.contact .section-title {
    text-align: left;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: start;
}

.contact-description {
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-8);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--color-gray-300);
}

.contact-item svg {
    color: var(--color-primary);
}

.contact-item a {
    color: var(--color-gray-300);
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--color-white);
}

.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-10);
    border-radius: var(--radius-2xl);
}

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

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: var(--spacing-2);
}

.form-input {
    width: 100%;
    padding: var(--spacing-4);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    background: var(--color-white);
}

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

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

/* ===================================
   Footer
   =================================== */

.footer {
    padding: var(--spacing-16) 0 var(--spacing-8);
    background: var(--color-gray-900);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    padding-bottom: var(--spacing-12);
    border-bottom: 1px solid var(--color-gray-800);
}

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

.footer-tagline {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-16);
}

.footer-heading {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

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

.footer-list a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--spacing-8);
    text-align: center;
}

.copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-shape {
        width: 300px;
        height: 300px;
    }

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

    .portfolio-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .portfolio-card:nth-child(even) {
        direction: ltr;
    }

    .portfolio-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        background: var(--color-white);
        padding: var(--spacing-8);
        gap: var(--spacing-4);
        transform: translateX(100%);
        transition: transform var(--transition-base);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-4);
    }

    .nav-link-cta {
        width: 100%;
        text-align: center;
    }

    .hero {
        padding-top: calc(var(--header-height) + var(--spacing-12));
        padding-bottom: var(--spacing-16);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-visual {
        order: -1;
    }

    .hero-shape {
        width: 200px;
        height: 200px;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-10);
    }

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

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-10);
    }

    .footer-links {
        gap: var(--spacing-10);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-4);
    }

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

    .btn {
        width: 100%;
    }

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

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

    .portfolio-title {
        font-size: var(--font-size-xl);
    }

    .about-stats {
        flex-direction: column;
        gap: var(--spacing-6);
    }

    .contact-form-wrapper {
        padding: var(--spacing-6);
    }
}