/* ===== VARIABLES ===== */
:root {
    --primary: #2D6BA1;
    --primary-light: #4A8BC2;
    --primary-dark: #1E4D7B;
    --gradient-start: #2D6BA1;
    --gradient-end: #4A8BC2;
    --dark: #0F172A;
    --dark-light: #1E293B;
    --gray: #64748B;
    --gray-light: #CBD5E1;
    --gray-lighter: #F1F5F9;
    --white: #FFFFFF;
    --success: #10B981;
    --warning: #F59E0B;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* ===== RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

/* ===== UTILITIES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-lighter);
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
}

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

.nav a {
    font-weight: 500;
    color: var(--dark);
    transition: color 0.3s;
}

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

.cta-button {
    background: var(--primary);
    color: var(--white) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* ===== HERO ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #F8FAFC 0%, #E0E7FF 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
    max-width: 500px;
}

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

.button {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
}

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

.button-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.button-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.button-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.button-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.hero-visual {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: var(--white);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: float 6s ease-in-out infinite;
}

.floating-card svg {
    color: var(--primary);
}

.floating-card span {
    font-weight: 600;
    color: var(--dark);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 10%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 10%;
    left: 40%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ===== SECTIONS ===== */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== SERVICES ===== */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    border: 2px solid var(--gray-lighter);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    color: var(--white);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.service-description {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--dark-light);
}

.service-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* ===== PROJECTS ===== */
.projects {
    background: linear-gradient(135deg, #F8FAFC 0%, #E0E7FF 100%);
}

.project-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.project-badge {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.project-features-grid {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.project-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.project-feature svg {
    color: var(--success);
    flex-shrink: 0;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-badge {
    background: var(--white);
    border: 1px solid var(--gray-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Project Visual (Mockup) */
.mockup-browser {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.browser-bar {
    background: var(--gray-lighter);
    padding: 1rem;
    display: flex;
    align-items: center;
}

.browser-dots {
    display: flex;
    gap: 0.5rem;
}

.browser-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-light);
}

.browser-content {
    padding: 2rem;
    background: #F9FAFB;
}

.dashboard-preview {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.preview-header {
    height: 40px;
    background: linear-gradient(90deg, var(--gray-lighter) 0%, var(--gray-light) 100%);
    border-radius: 8px;
}

.preview-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.stat-card {
    height: 80px;
    background: var(--white);
    border-radius: 8px;
}

.preview-chart {
    height: 200px;
    background: var(--white);
    border-radius: 8px;
    background-image: linear-gradient(90deg, transparent 24px, var(--gray-lighter) 24px),
                      linear-gradient(0deg, transparent 24px, var(--gray-lighter) 24px);
    background-size: 25px 25px;
}

/* ===== CONTACT ===== */
.contact {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

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

.contact-card {
    display: flex;
    gap: 1.5rem;
    align-items: start;
    padding: 1.5rem;
    background: var(--gray-lighter);
    border-radius: 12px;
    transition: all 0.3s;
}

.contact-card:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.contact-card svg {
    color: var(--primary);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-details a {
    color: var(--primary);
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-cta {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
}

.cta-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--gray);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: var(--gray-light);
    padding: 3rem 0;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-logo {
    height: 40px;
    filter: brightness(0) invert(1);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
    .hero .container,
    .project-showcase,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-visual {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .nav {
        gap: 1rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .button {
        width: 100%;
        text-align: center;
    }

    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .nav {
        display: none;
    }

    .logo {
        height: 40px;
    }

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