/* 
  SYNTAX-SAGE TECH HUB - PROFESSIONAL PORTFOLIO STYLESHEET
  Modern, investor-ready design with CSS-only animations
  Color Palette: Navy (#0F1419), Electric Blue (#0066FF), Cyan (#00D9FF), Lime (#00FF88)
*/

/* ============================================
   1. VARIABLES & COLOR SYSTEM
   ============================================ */

:root {
    --color-navy: #0F1419;
    --color-navy-light: #1A2536;
    --color-blue: #0066FF;
    --color-blue-dark: #0052CC;
    --color-cyan: #00D9FF;
    --color-lime: #00FF88;

    --color-white: #FFFFFF;
    --color-gray-50: #F8F9FA;
    --color-gray-100: #EEF1F5;
    --color-gray-200: #D8DCE3;
    --color-gray-400: #949CA6;
    --color-gray-600: #5A6370;
    --color-gray-900: #1B1F26;

    --color-accent-cyan: #00D9FF;
    --color-accent-lime: #00FF88;

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

    --font-display: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(0, 102, 255, 0.3);

    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;
}

/* ============================================
   2. GLOBAL STYLES & RESET
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

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

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

:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin: 0;
    line-height: 1.8;
}

.section__subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 600px;
    text-align: justify;
}

/* ============================================
   4. LAYOUT UTILITIES
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    width: 100%;
}

.section {
    padding: var(--space-4xl) 0;
    position: relative;
}

.section__header {
    margin-bottom: var(--space-3xl);
    text-align: center;
}

.section__title {
    margin-bottom: var(--space-md);
    position: relative;
    display: inline-block;
}

.section__title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-blue), var(--color-cyan));
    border-radius: 2px;
}

.section--about {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.section--services {
    background: var(--color-white);
}

.section--portfolio {
    background: var(--color-gray-50);
}

.section--why-us {
    background: var(--color-white);
}

.section--team {
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.section--testimonials {
    background: var(--color-navy);
    color: var(--color-white);
}

.section--testimonials .section__title::after {
    background: linear-gradient(90deg, var(--color-cyan), var(--color-lime));
}

.section--testimonials .section__subtitle {
    color: var(--color-gray-200);
}

.section--investor {
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    color: var(--color-white);
}

.section--contact {
    background: var(--color-white);
}

/* ============================================
   5. NAVIGATION BAR
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(0, 102, 255, 0.1);
}

.navbar__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ============================================
   NAVBAR LOGO
   ============================================ */

.navbar__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-white);
    transition: transform var(--transition-base);
    white-space: nowrap;
}

.navbar__logo:hover {
    transform: scale(1.05);
}

/* Logo image container */
.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    overflow: hidden;
}

/* Actual logo image */
.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    border-radius: 10px;
}

/* Logo text */
.logo-text {
    display: inline-block;
    line-height: 1;
}

.navbar__links {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    align-items: center;
}

.nav-link {
    color: var(--color-gray-200);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-blue), var(--color-cyan));
    transition: width var(--transition-base);
}

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

.nav-link:hover::after {
    width: 100%;
}

.navbar__underline {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 1px;
    width: 0;
    background: linear-gradient(90deg, var(--color-blue), var(--color-cyan));
    transition: width var(--transition-base);
}

/* ============================================
   6. BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    border-radius: 8px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-blue) 0%, #0052CC 100%);
    color: var(--color-white);
    border: 2px solid var(--color-blue);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(0, 102, 255, 0.5);
    background: linear-gradient(135deg, #0052CC 0%, var(--color-blue) 100%);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--secondary {
    background: transparent;
    color: var(--color-blue);
    border: 2px solid var(--color-blue);
}

.btn--secondary:hover {
    background: var(--color-blue);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.3);
}

.btn--small {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
}

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

/* ============================================
   7. HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px;
    overflow: hidden;
}

.hero__background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 50%, #1a3a52 100%);
    z-index: 0;
}

.hero__background::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
    animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}

.hero__content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--color-white);
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.hero__headline {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    line-height: 1.15;
    animation: slideInDown 0.8s ease-out;
}

.gradient-text {
    background: linear-gradient(90deg, var(--color-cyan), var(--color-lime), var(--color-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientPulse 3s ease-in-out infinite;
}

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

@keyframes gradientPulse {
    0%, 100% {
        filter: brightness(1);
    }
    50% {
        filter: brightness(1.2);
    }
}

.hero__subheadline {
    font-size: 1.375rem;
    color: var(--color-gray-200);
    margin-bottom: var(--space-xl);
    line-height: 1.8;
    animation: slideInUp 0.8s ease-out 0.2s both;
}

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

.hero__ctas {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
    animation: slideInUp 0.8s ease-out 0.4s both;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-3xl);
    padding-top: var(--space-3xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    animation: slideInUp 0.8s ease-out 0.6s both;
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-lime));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xs);
}

.stat__label {
    font-size: 0.875rem;
    color: var(--color-gray-200);
}

/* ============================================
   8. ABOUT SECTION
   ============================================ */

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about__text {
    padding: var(--space-lg) 0;
}

.about__subheading {
    font-size: 1.5rem;
    color: var(--color-navy);
    margin-bottom: var(--space-md);
}

.about__description {
    color: var(--color-gray-600);
    line-height: 1.9;
    margin-bottom: var(--space-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.stat-card {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: 12px;
    border: 1px solid var(--color-gray-100);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-blue);
    box-shadow: var(--shadow-lg);
}

.stat-card__number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-blue), var(--color-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: var(--space-xs);
}

.stat-card__label {
    font-size: 0.95rem;
    color: var(--color-gray-600);
    font-weight: 500;
}

/* ============================================
   9. SERVICES SECTION
   ============================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    padding: var(--space-xl);
    border-radius: 12px;
    background: var(--color-white);
    border: 2px solid var(--color-gray-100);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 217, 255, 0.1));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-blue);
    transform: translateY(-12px);
    box-shadow: 0 0 30px rgba(0, 102, 255, 0.2);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card__icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    display: block;
    transform: scale(1);
    transition: transform var(--transition-base);
}

.service-card:hover .service-card__icon {
    transform: scale(1.2) rotate(5deg);
}

.service-card__title {
    font-size: 1.375rem;
    margin-bottom: var(--space-md);
    color: var(--color-navy);
    position: relative;
    z-index: 2;
}

.service-card__description {
    color: var(--color-gray-600);
    line-height: 1.8;
    position: relative;
    z-index: 2;
}

/* ============================================
   10. PORTFOLIO SECTION
   ============================================ */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--space-xl);
}

.project-card {
    background: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-card__image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: var(--color-gray-100);
    position: relative;
}

.project-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.project-card:hover .project-card__image img {
    transform: scale(1.08);
}

.project-card__content {
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-card__title {
    font-size: 1.375rem;
    margin-bottom: var(--space-md);
    color: var(--color-navy);
}

.project-card__description {
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

.project-card__results {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.result-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 217, 255, 0.1));
    border: 1px solid var(--color-cyan);
    color: var(--color-blue);
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ============================================
   11. WHY CHOOSE US SECTION
   ============================================ */

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-xl);
}

.why-card {
    padding: var(--space-xl);
    border-radius: 12px;
    background: linear-gradient(135deg, var(--color-gray-50), var(--color-white));
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
    position: relative;
}

.why-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05), rgba(0, 217, 255, 0.05));
    opacity: 0;
    border-radius: 12px;
    transition: opacity var(--transition-base);
}

.why-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-blue);
    box-shadow: 0 0 30px rgba(0, 102, 255, 0.15);
}

.why-card:hover::before {
    opacity: 1;
}

.why-card__number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-blue), var(--color-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 2;
}

.why-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
    color: var(--color-navy);
    position: relative;
    z-index: 2;
}

.why-card__description {
    color: var(--color-gray-600);
    line-height: 1.8;
    position: relative;
    z-index: 2;
}

/* ============================================
   12. TEAM SECTION
   ============================================ */

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-xl);
}

.team-card {
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
}

.team-card__image {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: var(--space-lg);
    background: var(--color-gray-100);
    position: relative;
}

.team-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.team-card:hover .team-card__image img {
    transform: scale(1.1);
}

.team-card__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.2), rgba(0, 217, 255, 0.2));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.team-card:hover .team-card__image::after {
    opacity: 1;
}

.team-card__name {
    font-size: 1.25rem;
    color: var(--color-navy);
    margin-bottom: var(--space-xs);
}

.team-card__role {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-blue);
    margin-bottom: var(--space-md);
}

.team-card__bio {
    font-size: 0.9rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ============================================
   13. TESTIMONIALS SECTION
   ============================================ */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--space-xl);
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 217, 255, 0.2);
    padding: var(--space-xl);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    border-color: rgba(0, 217, 255, 0.5);
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-8px);
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.2);
}

.testimonial-card__quote {
    font-size: 1.0625rem;
    line-height: 1.9;
    margin-bottom: var(--space-lg);
    font-style: italic;
    flex-grow: 1;
    color: var(--color-gray-50);
}

.testimonial-card__quote::before {
    content: '"';
    font-family: Georgia, serif;
    font-size: 3rem;
    color: var(--color-cyan);
    opacity: 0.3;
    position: relative;
    top: 0.5rem;
}

.testimonial-card__author {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.testimonial-card__author strong {
    color: var(--color-white);
    font-weight: 600;
}

.testimonial-card__author span {
    font-size: 0.875rem;
    color: var(--color-gray-200);
}

.testimonial-card__logo {
    height: 40px;
    width: 120px;
    overflow: hidden;
}

.testimonial-card__logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(1) brightness(1.2);
    opacity: 0.6;
}

/* ============================================
   14. INVESTOR CTA SECTION
   ============================================ */

.investor-content {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
}

.investor-title {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: var(--color-white);
}

.investor-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-100);
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
}

.investor-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.highlight {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.highlight-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-200);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.highlight-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-lime));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   15. CONTACT SECTION
   ============================================ */

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.contact-detail {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.contact-detail__icon {
    font-size: 1.75rem;
    flex-shrink: 0;
}

.contact-detail__label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.contact-detail__value {
    font-size: 1rem;
    color: var(--color-navy);
    line-height: 1.6;
}

.contact-detail__value a {
    color: var(--color-blue);
    text-decoration: none;
    transition: color var(--transition-base);
    font-weight: 500;
}

.contact-detail__value a:hover {
    color: var(--color-cyan);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
    padding: var(--space-md);
    border: 2px solid var(--color-gray-200);
    border-radius: 8px;
    font-size: 1rem;
    transition: all var(--transition-base);
    background: var(--color-white);
    color: var(--color-navy);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-gray-400);
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-blue);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.2);
    outline: none;
}

.form-textarea {
    resize: vertical;
    min-height: 150px;
    font-family: inherit;
}

/* ============================================
   16. FOOTER
   ============================================ */

.footer {
    background: var(--color-navy);
    color: var(--color-white);
    padding: var(--space-3xl) 0 var(--space-lg);
    border-top: 1px solid rgba(0, 217, 255, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.footer-section-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.footer-description {
    font-size: 0.95rem;
    color: var(--color-gray-200);
    line-height: 1.7;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    color: var(--color-gray-200);
    font-size: 0.95rem;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-cyan);
}

.social-links {
    display: flex;
    gap: var(--space-sm);
}

.social-link {
    color: var(--color-gray-200);
    font-size: 0.9rem;
    transition: all var(--transition-base);
    padding: 0.5rem 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
}

.social-link:hover {
    color: var(--color-cyan);
    border-color: var(--color-cyan);
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.newsletter-input {
    flex: 1;
    min-width: 180px;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
    font-size: 0.95rem;
    transition: all var(--transition-base);
}

.newsletter-input::placeholder {
    color: var(--color-gray-400);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-cyan);
    background: rgba(255, 255, 255, 0.1);
}

.newsletter-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-blue), var(--color-cyan));
    color: var(--color-white);
    border-radius: 6px;
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
}

.newsletter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.3);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
    font-size: 0.875rem;
}

.footer-copyright {
    color: var(--color-gray-400);
}

.footer-links-bottom {
    display: flex;
    gap: var(--space-lg);
}

.footer-links-bottom a {
    color: var(--color-gray-400);
    transition: color var(--transition-base);
}

.footer-links-bottom a:hover {
    color: var(--color-cyan);
}

/* ============================================
   17. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .navbar__links {
        display: none;
    }

    .hero__headline {
        font-size: 2.5rem;
    }

    .hero__subheadline {
        font-size: 1.1rem;
    }

    .hero__ctas {
        flex-direction: column;
    }

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

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

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

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

    .why-us-grid {
        grid-template-columns: 1fr;
    }

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

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

    .contact-content {
        grid-template-columns: 1fr;
    }

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

    .investor-highlights {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 3rem;
    }

    h1 {
        font-size: 1.875rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .hero {
        margin-top: 60px;
        min-height: auto;
        padding: var(--space-2xl) 0;
    }

    .hero__headline {
        font-size: 1.875rem;
    }

    .hero__subheadline {
        font-size: 1rem;
        margin-bottom: var(--space-lg);
    }

    .hero__ctas {
        gap: var(--space-sm);
    }

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

    .stat-card {
        padding: var(--space-lg);
    }

    .stat-card__number {
        font-size: 2rem;
    }

    .section__subtitle {
        font-size: 1rem;
    }

    .service-card {
        padding: var(--space-lg);
    }

    .project-card__image {
        height: 200px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   18. PRINT STYLES
   ============================================ */

@media print {
    body {
        background: white;
    }

    .navbar,
    .hero__ctas {
        display: none;
    }

    a {
        text-decoration: underline;
    }
}

/* ============================================
   19. REDUCED MOTION (Accessibility)
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
    }
}