/* ===================================================================
   Startexa – Dark Investment Company Theme
   Inspired by Optimizer Invest
   =================================================================== */

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

:root {
    --dark-primary: #1B2A3D;
    --dark-deep: #0F1C2E;
    --dark-card: #223347;
    --accent: #3ECFA0;
    --accent-hover: #32B88A;
    --accent-glow: rgba(62, 207, 160, 0.15);
    --white: #FFFFFF;
    --off-white: #F5F7FA;
    --text-light: #FFFFFF;
    --text-muted: #94A3B8;
    --text-dark: #1E293B;
    --text-body: #475569;
    --border-dark: rgba(255,255,255,0.08);
    --border-light: #E2E8F0;
    --radius: 8px;
    --radius-lg: 16px;
    --shadow: 0 4px 24px rgba(0,0,0,0.12);
    --shadow-hover: 0 8px 40px rgba(0,0,0,0.18);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.25s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--white);
}

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

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

/* ===================================================================
   NAVBAR
   =================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(15, 28, 46, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-dark);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo { display: flex; align-items: center; }
.logo-img { height: 30px; width: auto; }

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-menu a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 18px;
    border-radius: 6px;
    transition: color var(--transition), background var(--transition);
    letter-spacing: 0.01em;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--white);
    background: rgba(255,255,255,0.06);
}

.lang-switch {
    display: flex;
    gap: 2px;
    margin-left: 16px;
    padding-left: 16px;
    border-left: 1px solid var(--border-dark);
}

.lang-btn {
    font-size: 0.78rem;
    color: var(--text-muted) !important;
    padding: 4px 10px !important;
    border-radius: 4px !important;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-btn.lang-active {
    opacity: 1;
    color: var(--accent) !important;
    background: rgba(62, 207, 160, 0.08) !important;
}

/* Mobile toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-muted);
    border-radius: 2px;
    transition: .3s;
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(15, 28, 46, 0.98);
        backdrop-filter: blur(16px);
        padding: 16px 24px;
        gap: 4px;
    }
    .nav-menu.active { display: flex; }
    .nav-menu a { width: 100%; }
    .lang-switch {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        padding-top: 12px;
        margin-top: 4px;
        border-top: 1px solid var(--border-dark);
    }
}

/* ===================================================================
   HERO (dark section)
   =================================================================== */
.hero {
    background: linear-gradient(165deg, var(--dark-deep) 0%, var(--dark-primary) 60%, #1E3348 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    position: relative;
    overflow: hidden;
}

/* Subtle grid pattern overlay */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-inner {
    text-align: center;
    padding: 80px 0 120px;
    position: relative;
    z-index: 1;
}

.hero-label {
    display: inline-block;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.hero-text h1 {
    font-size: clamp(2.4rem, 5.5vw, 4rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 12px;
}

.hero-underline {
    display: block;
    width: 80px;
    height: 3px;
    background: var(--accent);
    margin: 24px auto 28px;
    border-radius: 2px;
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 580px;
    margin: 0 auto 40px;
    line-height: 1.75;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    font-family: var(--font);
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--accent);
    color: var(--dark-deep);
    box-shadow: 0 4px 20px rgba(62, 207, 160, 0.25);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--dark-deep);
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(62, 207, 160, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255,255,255,0.2);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(62, 207, 160, 0.05);
}

/* ===================================================================
   LIGHT SECTIONS (About, Contact)
   =================================================================== */
.page-section {
    padding: 100px 0 120px;
    padding-top: 172px; /* navbar offset */
    min-height: 100vh;
}

.page-section--light {
    background: var(--white);
}

.page-section--alt {
    background: var(--off-white);
}

.page-section--dark {
    background: var(--dark-primary);
    color: var(--text-light);
}

.page-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

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

.title-accent {
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent);
    margin: 16px 0 40px;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin: 56px 0 24px;
    padding-left: 16px;
    border-left: 3px solid var(--accent);
}

.page-section--dark .section-subtitle {
    color: var(--white);
}

.section-subtitle:first-of-type {
    margin-top: 0;
}

/* ===================================================================
   ABOUT
   =================================================================== */
.about-content {
    max-width: 680px;
}

.about-content p {
    margin-bottom: 20px;
    line-height: 1.85;
    color: var(--text-body);
    font-size: 1.02rem;
}
.about-content p:last-child { margin-bottom: 0; }

.page-section--dark .about-content p {
    color: var(--text-muted);
}

/* ===================================================================
   PROJECTS
   =================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 20px;
}

.project-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 28px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    cursor: pointer;
    position: relative;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent);
}

.project-card.coming-soon {
    opacity: 0.65;
}

.project-logo {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    overflow: hidden;
    background: var(--off-white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 6px;
}

.logo-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-glow);
}

.project-info { flex: 1; min-width: 0; }

.project-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 4px;
}

.project-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
}

.project-header h3 a { color: var(--text-dark); }
.project-header h3 a:hover { color: var(--accent); }

.badge {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 10px;
    border-radius: 4px;
}

.badge-active {
    background: rgba(62, 207, 160, 0.1);
    color: #1A9A6E;
}

.badge-soon {
    background: rgba(234, 179, 8, 0.1);
    color: #A16207;
}

.project-role {
    display: block;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.project-desc {
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.6;
}

.project-previous {
    opacity: 0.85;
}

/* Dark section project cards */
.page-section--dark .project-card {
    background: var(--dark-card);
    border-color: var(--border-dark);
}
.page-section--dark .project-card:hover {
    border-color: var(--accent);
}
.page-section--dark .project-header h3,
.page-section--dark .project-header h3 a {
    color: var(--white);
}
.page-section--dark .project-role {
    color: var(--text-muted);
}
.page-section--dark .project-desc {
    color: #94A3B8;
}
.page-section--dark .project-logo {
    background: rgba(255,255,255,0.05);
}

@media (max-width: 480px) {
    .project-card { flex-direction: column; align-items: center; text-align: center; }
    .projects-grid { grid-template-columns: 1fr; }
}

/* ===================================================================
   CONTACT
   =================================================================== */
.contact-intro {
    max-width: 520px;
    margin-bottom: 36px;
    color: var(--text-body);
    line-height: 1.75;
}

.contact-form {
    max-width: 520px;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-dark);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--border-light);
    border-radius: 6px;
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--text-dark);
    background: var(--off-white);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: var(--white);
}

.form-group textarea { resize: vertical; }

/* ===================================================================
   FLASH MESSAGES
   =================================================================== */
.flash-container { padding-top: 88px; }

.flash {
    padding: 14px 24px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.flash-success {
    background: rgba(62, 207, 160, 0.1);
    color: #1A9A6E;
    border: 1px solid rgba(62, 207, 160, 0.2);
}

.flash-error {
    background: rgba(239, 68, 68, 0.08);
    color: #DC2626;
    border: 1px solid rgba(239, 68, 68, 0.15);
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
    text-align: center;
    padding: 32px 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    background: var(--dark-deep);
    border-top: 1px solid var(--border-dark);
}

/* ===================================================================
   HERO STAT
   =================================================================== */
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.hero-stat {
    margin-top: 64px;
    text-align: center;
    padding: 32px 0;
    border-top: 1px solid var(--border-dark);
}

.hero-stat-value {
    display: block;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero-stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 8px;
    letter-spacing: 0.02em;
}

/* ===================================================================
   CARD ARROW
   =================================================================== */
.card-arrow {
    flex-shrink: 0;
    align-self: center;
    font-size: 1.2rem;
    color: var(--text-muted);
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity var(--transition), transform var(--transition), color var(--transition);
}

.project-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
    color: var(--accent);
}

/* ===================================================================
   PROJECT MODAL
   =================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.7);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 580px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 40px;
    position: relative;
    transform: translateY(20px) scale(0.97);
    transition: transform 0.3s ease;
    box-shadow: 0 24px 80px rgba(0,0,0,0.25);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    transition: color var(--transition);
}
.modal-close:hover { color: var(--text-dark); }

.modal-logo {
    width: 72px;
    height: 72px;
    border-radius: 12px;
    overflow: hidden;
    background: var(--off-white);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.logo-fallback-modal {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.modal-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--off-white);
    border-radius: var(--radius);
}

.meta-item--wide {
    grid-column: 1 / -1;
}

.meta-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.meta-value {
    display: block;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-dark);
}

.modal-description {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 28px;
}

.modal-link {
    font-size: 0.85rem;
    padding: 12px 28px;
}

@media (max-width: 480px) {
    .modal { padding: 28px 20px; }
    .modal-meta { grid-template-columns: 1fr; }
}