/* ============================================
   RENEW HOLDINGS - Corporate Website Styles
   Brand Colors:
   - Green:  #30D579 (RGB 48, 213, 121)
   - Blue:   #3B2DE2 (RGB 59, 45, 226)
   - Navy:   #110B2E (RGB 17, 11, 46)
   ============================================ */

:root {
    /* Brand Colors */
    --color-green: #30D579;
    --color-green-light: #5DE896;
    --color-green-dark: #28B368;
    --color-blue: #3B2DE2;
    --color-blue-light: #5B4EF0;
    --color-blue-dark: #2E23B8;
    --color-navy: #110B2E;
    --color-navy-light: #1A1242;
    --color-navy-lighter: #251A5A;
    
    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray-50: #F8FAFC;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1E293B;
    --color-gray-900: #0F172A;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-green) 0%, var(--color-blue) 100%);
    --gradient-dark: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 50%, var(--color-navy-lighter) 100%);
    --gradient-glow-green: radial-gradient(circle, rgba(48, 213, 121, 0.15) 0%, transparent 70%);
    --gradient-glow-blue: radial-gradient(circle, rgba(59, 45, 226, 0.15) 0%, transparent 70%);

    /* Typography */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Space Mono', 'SF Mono', Consolas, monospace;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    --text-7xl: 4.5rem;
    --text-8xl: 6rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow-green: 0 0 40px rgba(48, 213, 121, 0.3);
    --shadow-glow-blue: 0 0 40px rgba(59, 45, 226, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    /* Layout */
    --container-max: 1320px;
    --container-padding: 1.5rem;
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-gray-800);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Section */
.section { padding: var(--space-16) 0; }
.section-lg { padding: var(--space-20) 0; }
@media (max-width: 768px) { 
    .section { padding: var(--space-14) 0; } 
    .section-lg { padding: var(--space-16) 0; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; color: var(--color-gray-900); }

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

.text-gradient-reverse {
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header { text-align: center; max-width: 800px; margin: 0 auto var(--space-16); }
.section-header-left { text-align: left; margin: 0 0 var(--space-12); max-width: none; }
.section-header-light .section-title { color: var(--color-white); }
.section-header-light .section-subtitle { color: rgba(255, 255, 255, 0.7); }

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-green);
    background: rgba(48, 213, 121, 0.1);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    border: 1px solid rgba(48, 213, 121, 0.2);
}

.section-tag-blue {
    color: var(--color-blue);
    background: rgba(59, 45, 226, 0.1);
    border-color: rgba(59, 45, 226, 0.2);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 800;
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}
@media (min-width: 768px) { .section-title { font-size: var(--text-4xl); } }
@media (min-width: 1024px) { .section-title { font-size: var(--text-5xl); } }

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    max-width: 700px;
    line-height: 1.7;
}
.section-header .section-subtitle { margin: 0 auto; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-green);
    color: var(--color-navy);
}
.btn-primary:hover {
    background: var(--color-green-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-green);
}

.btn-blue {
    background: var(--color-blue);
    color: var(--color-white);
}
.btn-blue:hover {
    background: var(--color-blue-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-blue);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}
.btn-secondary:hover { 
    background: rgba(255, 255, 255, 0.2); 
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-navy);
    border-color: var(--color-gray-300);
}
.btn-outline:hover { 
    background: var(--color-gray-50); 
    border-color: var(--color-green);
    color: var(--color-green-dark);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}
.btn-outline-light:hover { 
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-green);
}

.btn-gradient {
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
}
.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-large { 
    font-size: var(--text-base); 
    padding: var(--space-4) var(--space-8); 
    border-radius: var(--radius-xl);
}
.btn-full { width: 100%; }

.btn svg { width: 18px; height: 18px; }

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: all var(--transition-base);
}
.header.scrolled {
    background: rgba(17, 11, 46, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav { 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    height: 90px; 
}

.logo { display: flex; align-items: center; gap: var(--space-3); }
.logo-img { height: 40px; width: auto; }
@media (max-width: 768px) { .logo-img { height: 32px; } }
.logo-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
}
.logo-icon svg { width: 24px; height: 24px; color: var(--color-white); }
.logo-text { 
    font-size: var(--text-xl); 
    font-weight: 800; 
    color: var(--color-white);
    letter-spacing: -0.02em;
}
.logo-accent { color: var(--color-green); }

.nav-menu { display: flex; align-items: center; gap: var(--space-1); }
.nav-item { position: relative; }
.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}
.nav-link:hover { 
    color: var(--color-white); 
    background: rgba(255, 255, 255, 0.1);
}
.nav-link svg { width: 16px; height: 16px; }

/* Dropdown */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--color-navy);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
}
.nav-item:hover .dropdown-menu { 
    opacity: 1; 
    visibility: visible; 
    transform: translateY(0); 
}
.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}
.dropdown-menu a:hover { 
    background: rgba(48, 213, 121, 0.1); 
    color: var(--color-green); 
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    padding: 4px;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-fast);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 1024px) {
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 90px;
        left: 0;
        right: 0;
        background: var(--color-navy);
        padding: var(--space-6);
        box-shadow: var(--shadow-2xl);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        gap: var(--space-2);
    }
    .nav-menu.active .nav-link {
        padding: var(--space-4);
        font-size: var(--text-base);
    }
    .nav-menu.active .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: rgba(255, 255, 255, 0.05);
        margin-top: var(--space-2);
    }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-navy);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-20) 0 var(--space-8);
    position: relative;
    overflow: hidden;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-blue), var(--color-green), transparent);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2.5fr;
    gap: var(--space-16);
    margin-bottom: var(--space-16);
}
@media (max-width: 1024px) { .footer-main { grid-template-columns: 1fr; gap: var(--space-12); } }

.footer-brand { max-width: 360px; }
.footer-logo { margin-bottom: var(--space-6); }
.footer-logo-img { height: 36px; width: auto; }
.footer-logo .logo-text { font-size: var(--text-2xl); }
.footer-tagline {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-green);
    margin-bottom: var(--space-4);
    letter-spacing: 0.05em;
}
.footer-desc { 
    font-size: var(--text-base); 
    line-height: 1.8; 
    margin-bottom: var(--space-6);
}
.footer-social {
    display: flex;
    gap: var(--space-3);
}
.footer-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition-fast);
}
.footer-social a:hover {
    background: var(--color-green);
    color: var(--color-navy);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}
@media (max-width: 768px) { .footer-links { grid-template-columns: repeat(2, 1fr); } }

.footer-col h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { 
    font-size: var(--text-sm); 
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.footer-col a:hover { color: var(--color-green); transform: translateX(4px); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
@media (max-width: 768px) { 
    .footer-bottom { 
        flex-direction: column; 
        gap: var(--space-4); 
        text-align: center; 
    } 
}
.footer-legal { font-size: var(--text-sm); }
.footer-legal a { color: var(--color-green); }
.footer-policies { display: flex; gap: var(--space-6); }
.footer-policies a { font-size: var(--text-sm); }
.footer-policies a:hover { color: var(--color-green); }

/* ============================================
   FORMS
   ============================================ */
.form-group { margin-bottom: var(--space-5); }
.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--text-base);
    font-family: var(--font-primary);
    color: var(--color-gray-800);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    transition: all var(--transition-fast);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 4px rgba(59, 45, 226, 0.1);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-400);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-row { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: var(--space-4); 
}
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* Dark form variant */
.form-dark .form-group label { color: rgba(255, 255, 255, 0.8); }
.form-dark .form-group input,
.form-dark .form-group textarea,
.form-dark .form-group select {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}
.form-dark .form-group input:focus,
.form-dark .form-group textarea:focus,
.form-dark .form-group select:focus {
    border-color: var(--color-green);
    box-shadow: 0 0 0 4px rgba(48, 213, 121, 0.1);
}
.form-dark .form-group input::placeholder,
.form-dark .form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-8);
    transition: all var(--transition-base);
}
.card:hover {
    border-color: var(--color-green);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.card-dark {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
}
.card-dark:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(48, 213, 121, 0.3);
}

.card-gradient {
    background: var(--gradient-primary);
    border: none;
    color: var(--color-white);
}

/* ============================================
   UTILITIES
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.animate-glow {
    animation: glow 3s ease-in-out infinite;
}
@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(48, 213, 121, 0.3); }
    50% { box-shadow: 0 0 40px rgba(48, 213, 121, 0.6); }
}

/* ============================================
   CLIENTS SECTION
   ============================================ */
.clients-section {
    background: var(--color-white);
}
.clients-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-8);
    align-items: center;
}
@media (max-width: 1024px) { .clients-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .clients-grid { grid-template-columns: repeat(2, 1fr); } }
.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-base);
}
.client-logo:hover { filter: grayscale(0%); opacity: 1; }
.client-logo img { max-height: 50px; width: auto; }