/* ========================================
   Sagaie Consulting Group - V2
   Pure CSS, zero dependencies
   ======================================== */

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

:root {
    --blue: #2a7ab5;
    --blue-dark: #1e5f8f;
    --dark: #1a1a2e;
    --darker: #0f0f1a;
    --gray-light: #f7f8fa;
    --gray: #e8eaed;
    --text: #333;
    --text-light: #666;
    --white: #fff;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 40px rgba(0,0,0,0.12);
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: var(--blue);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--blue-dark);
}

/* ========================================
   Navigation
   ======================================== */

#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition), box-shadow var(--transition);
}

#navbar.scrolled {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.nav-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 2px;
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--white);
}

.nav-logo img {
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: width var(--transition);
}

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

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

.lang-switch {
    border: 1px solid rgba(255,255,255,0.4) !important;
    padding: 4px 12px !important;
    border-radius: 4px;
    font-size: 0.8rem !important;
}

.lang-switch:hover {
    border-color: var(--white) !important;
    background: rgba(255,255,255,0.1);
}

.lang-switch::after {
    display: none !important;
}

/* Mobile toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(26, 26, 46, 0.98);
        padding: 20px 24px;
        gap: 16px;
    }

    #navbar.open .nav-links {
        display: flex;
    }

    #navbar.open .nav-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    #navbar.open .nav-toggle span:nth-child(2) {
        opacity: 0;
    }
    #navbar.open .nav-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

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

#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: url('images/bg-parallax.jpg') center/cover no-repeat fixed;
    color: var(--white);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,15,26,0.8) 0%, rgba(42,122,181,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-logo {
    margin-bottom: 24px;
    animation: float 6s ease-in-out infinite;
    filter: brightness(0) invert(1) drop-shadow(0 4px 20px rgba(0,0,0,0.3));
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

#hero h1 {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    letter-spacing: 6px;
    margin-bottom: 8px;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.4rem);
    letter-spacing: 4px;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 40px;
}

.hero-cta {
    display: inline-block;
    padding: 14px 36px;
    border: 2px solid var(--white);
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 50px;
    transition: all var(--transition);
}

.hero-cta:hover {
    background: var(--white);
    color: var(--dark);
}

/* ========================================
   Section common
   ======================================== */

section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dark);
}

.section-title-light {
    color: var(--white);
}

.section-line {
    width: 60px;
    height: 3px;
    background: var(--blue);
    margin: 16px auto 48px;
    border-radius: 2px;
}

.section-line-light {
    background: rgba(255,255,255,0.5);
}

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

#services {
    background: var(--gray-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--white);
    padding: 48px 32px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--blue);
    color: var(--blue);
    margin-bottom: 24px;
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--blue);
    color: var(--white);
}

.service-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
    color: var(--dark);
}

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ========================================
   Quote
   ======================================== */

#quote {
    position: relative;
    background: url('images/bg-quote.jpg') center/cover no-repeat fixed;
    color: var(--white);
    text-align: center;
}

.quote-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15,15,26,0.75);
}

#quote .container {
    position: relative;
    z-index: 1;
}

blockquote {
    max-width: 800px;
    margin: 0 auto;
}

.quote-icon {
    color: var(--blue);
    margin-bottom: 24px;
    opacity: 0.7;
}

blockquote p {
    font-size: clamp(1.2rem, 3vw, 1.7rem);
    font-weight: 300;
    line-height: 1.8;
    font-style: italic;
}

/* ========================================
   Why Us
   ======================================== */

#why-us {
    background: var(--gray-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 10px;
    background: var(--blue);
    color: var(--white);
}

.feature h4 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 6px;
    color: var(--dark);
}

.feature p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ========================================
   Partners
   ======================================== */

#partners {
    background: var(--dark);
    color: var(--white);
}

.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.partner-logo {
    display: flex;
    align-items: center;
    opacity: 0.7;
    transition: opacity var(--transition), transform var(--transition);
}

.partner-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}

.partner-logo img {
    max-width: 140px;
    height: auto;
    filter: brightness(0) invert(1);
    transition: filter var(--transition);
}

.partner-logo:hover img {
    filter: none;
}

/* ========================================
   Contact / Offices
   ======================================== */

#contact {
    background: var(--gray-light);
}

.offices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.office {
    background: var(--white);
    padding: 36px 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.office:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.office h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--blue);
}

.office ul {
    list-style: none;
}

.office li {
    padding: 6px 0;
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

.office li:last-child {
    font-style: italic;
    color: var(--blue);
    font-size: 0.85rem;
    margin-top: 4px;
}

.office a {
    color: var(--text);
    font-weight: 500;
}

.office a:hover {
    color: var(--blue);
}

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

footer {
    background: var(--darker);
    color: rgba(255,255,255,0.5);
    text-align: center;
    padding: 24px;
    font-size: 0.85rem;
}

/* ========================================
   Back to top
   ======================================== */

#back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition);
    box-shadow: 0 4px 12px rgba(42,122,181,0.4);
    z-index: 999;
}

#back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    background: var(--blue-dark);
    color: var(--white);
    transform: translateY(-2px);
}

/* ========================================
   Fade-in animations
   ======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.services-grid .fade-in:nth-child(2) { transition-delay: 0.15s; }
.services-grid .fade-in:nth-child(3) { transition-delay: 0.3s; }

.features-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.features-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }
.features-grid .fade-in:nth-child(4) { transition-delay: 0.3s; }
.features-grid .fade-in:nth-child(5) { transition-delay: 0.4s; }
.features-grid .fade-in:nth-child(6) { transition-delay: 0.5s; }

.offices-grid .fade-in:nth-child(2) { transition-delay: 0.15s; }
.offices-grid .fade-in:nth-child(3) { transition-delay: 0.3s; }

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

@media (max-width: 768px) {
    section {
        padding: 64px 0;
    }

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

    .partners-grid {
        gap: 24px;
    }

    .partner-logo img {
        max-width: 100px;
    }
}

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

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