/* ===== VARIABLES ===== */
:root {
    --color-primary: #1a56db;
    --color-primary-dark: #1342a8;
    --color-primary-light: #e8effc;
    --color-accent: #f59e0b;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-border: #e5e7eb;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

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

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.logo-icon {
    color: var(--color-primary);
    font-size: 1.4rem;
    margin-right: 4px;
}

.logo-accent {
    color: var(--color-primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: var(--radius);
    transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.nav-link--portal {
    color: var(--color-bg);
    background: var(--color-primary);
    margin-left: 8px;
}

.nav-link--portal:hover {
    color: var(--color-bg);
    background: var(--color-primary-dark);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-full {
    width: 100%;
}

/* ===== TEXT UTILITIES ===== */
.text-accent {
    color: var(--color-primary);
}

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-bg) 60%);
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
    border: 1px solid rgba(26, 86, 219, 0.2);
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: 500;
}

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

.section--alt {
    background: var(--color-bg-alt);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 48px;
    font-size: 1.05rem;
}

/* ===== FEATURES ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius);
    font-size: 1.3rem;
}

.feature h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    margin-bottom: 16px;
    color: var(--color-text-light);
    line-height: 1.7;
}

.about-list {
    margin-top: 20px;
}

.about-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--color-text);
    font-weight: 500;
}

.about-list li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.about-image-placeholder {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    color: #fff;
}

.about-image-placeholder span {
    font-size: 4rem;
    display: block;
    margin-bottom: 16px;
}

.about-image-placeholder p {
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* ===== SERVICES ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius);
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.service-card p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== REASONS ===== */
.reasons-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.reason {
    text-align: center;
}

.reason-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.3;
    margin-bottom: 8px;
}

.reason h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.reason p {
    color: var(--color-text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== CONTACT ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.contact-item {
    margin-bottom: 24px;
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--color-text-light);
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
}

.form-group textarea {
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--color-text);
    color: #fff;
    padding: 48px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand p {
    color: rgba(255,255,255,0.6);
    margin-top: 12px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    color: rgba(255,255,255,0.5);
}

.footer-links a {
    display: block;
    padding: 4px 0;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
}

/* ===== PORTAL PAGE ===== */
.portal-page {
    background: linear-gradient(135deg, #1a2332 0%, #0f172a 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header--portal {
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.header--portal .logo {
    color: #fff;
}

.header--portal .nav-link {
    color: rgba(255,255,255,0.7);
}

.header--portal .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

.portal-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 24px 40px;
}

.login-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 440px;
    padding: 40px;
}

.auth-tabs {
    display: flex;
    gap: 4px;
    background: #f1f5f9;
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    background: transparent;
    color: #64748b;
    transition: all 0.15s ease;
}

.auth-tab.active {
    background: #fff;
    color: var(--color-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.auth-tab:hover:not(.active) { color: #334155; }

.field-hint {
    display: block;
    font-size: 0.78rem;
    color: #64748b;
    margin-top: 4px;
}

.form-success {
    background: #f0fdf4;
    color: #16a34a;
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-top: 16px;
    font-weight: 500;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.login-type-label {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.login-type-toggle {
    display: flex;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.toggle-btn {
    flex: 1;
    padding: 10px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-text-light);
    transition: all var(--transition);
}

.toggle-btn.active {
    background: var(--color-primary);
    color: #fff;
}

.toggle-btn:not(.active):hover {
    background: var(--color-border);
}

.toggle-btn--disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Language switcher */
.lang-switcher {
    display: inline-flex;
    gap: 4px;
    align-items: center;
}
.lang-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--color-text-light);
    transition: var(--transition);
    font-family: inherit;
}
.lang-btn:hover { background: var(--color-bg-alt); }
.lang-btn.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.header .lang-switcher { margin-left: 12px; }
.topbar .lang-switcher { margin-left: auto; }
.sidebar-footer .lang-switcher { padding: 0 24px 12px; justify-content: center; }
.sidebar-footer .lang-btn { color: rgba(255,255,255,0.6); border-color: rgba(255,255,255,0.2); }
.sidebar-footer .lang-btn:hover { background: rgba(255,255,255,0.1); }
.sidebar-footer .lang-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.form-info {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    font-size: 0.85rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-light);
    cursor: pointer;
}

.checkbox-label input {
    accent-color: var(--color-primary);
}

.form-error {
    background: #fef2f2;
    color: #dc2626;
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-top: 16px;
}

.forgot-link {
    color: var(--color-primary);
    font-weight: 500;
}

.forgot-link:hover {
    text-decoration: underline;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.login-footer p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.login-help a {
    color: var(--color-primary);
    font-weight: 500;
}

.footer--portal {
    background: transparent;
    padding: 20px 0;
}

.footer--portal p {
    text-align: center;
    color: rgba(255,255,255,0.3);
    font-size: 0.8rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-md);
    }

    .nav.active {
        display: flex;
    }

    .nav-link--portal {
        text-align: center;
        margin-left: 0;
        margin-top: 8px;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .hero-stats {
        gap: 32px;
    }

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

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

    .reasons-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .login-card {
        padding: 28px;
    }
}