/* ========================================
   TNAADO Portal Page - Complete Standalone Styles
   NO external dependencies required
   ======================================== */

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

/* Root Variables */
:root {
    --color-primary: #A01D26;
    --color-primary-dark: #8b1920;
    --color-dark: #0f172a;
    --color-gray-dark: #475569;
    --color-gray-light: #f8fafc;
    --color-border: #e2e8f0;
    --color-white: #ffffff;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 60px;
    --spacing-3xl: 80px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Body Styles */
body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--color-gray-light);
    color: var(--color-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
}

/* Portal Hero Section */
.portal-hero {
    padding: 160px var(--spacing-md) var(--spacing-3xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    text-align: center;
    position: relative;
    z-index: 1;
}

.portal-hero-container {
    max-width: 900px;
    margin: 0 auto;
}

.portal-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.portal-hero h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--color-white);
}

.portal-hero-subtitle {
    font-size: 18px;
    opacity: 0.95;
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.7;
    color: var(--color-white);
}

.portal-hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    opacity: 0.95;
    color: var(--color-white);
}

.hero-feature i {
    font-size: 16px;
}

.portal-hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    margin-bottom: 40px;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.portal-hero-stats .hero-stat {
    text-align: center;
}

.portal-hero-stats .hero-stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.2;
    margin-bottom: 4px;
}

.portal-hero-stats .hero-stat-label {
    font-size: 14px;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-white);
}

.portal-hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Portal Buttons */
.btn-primary-portal {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 16px 36px;
    background: var(--color-white);
    color: var(--color-primary);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: none;
}

.btn-primary-portal:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    color: var(--color-primary);
    text-decoration: none;
}

.btn-secondary-portal {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 16px 36px;
    background: transparent;
    color: var(--color-white);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.2s ease;
}

.btn-secondary-portal:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    color: var(--color-white);
    text-decoration: none;
}

/* Modules Overview Section */
.modules-overview-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-gray-light);
}

.modules-overview-section .section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.modules-overview-section .section-header.center h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.modules-overview-section .section-header.center p {
    font-size: 18px;
    color: var(--color-gray-dark);
}

.portal-modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.portal-module {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px;
    transition: all 0.3s ease;
}

.portal-module:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.module-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--color-white);
    margin-bottom: 20px;
}

.portal-module h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 12px;
    line-height: 1.4;
}

.portal-module p {
    font-size: 14px;
    color: var(--color-gray-dark);
    line-height: 1.6;
    margin: 0;
}

/* Systems Section */
.systems-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.systems-section .section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.systems-section .section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.systems-section .section-header p {
    font-size: 18px;
    color: var(--color-gray-dark);
}

/* System Block */
.system-block {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.system-block:hover {
    box-shadow: var(--shadow-md);
}

.system-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px var(--spacing-lg);
    background: var(--color-gray-light);
    border-bottom: 1px solid var(--color-border);
}

.system-icon {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--color-white);
    flex-shrink: 0;
}

.system-title h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 4px;
    line-height: 1.3;
}

.system-title p {
    font-size: 14px;
    color: var(--color-gray-dark);
    margin: 0;
}

.system-content {
    padding: var(--spacing-lg);
}

.system-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.system-feature h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid rgba(160, 29, 38, 0.2);
}

.system-feature ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.system-feature li {
    font-size: 14px;
    color: var(--color-gray-dark);
    padding: var(--spacing-xs) 0;
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
}

.system-feature li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

/* Portal CTA Section */
.portal-cta-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-dark);
    color: var(--color-white);
}

.portal-cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.portal-cta-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-white);
}

.portal-cta-content > p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
    color: var(--color-white);
}

.portal-cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.portal-cta-section .btn-primary-portal {
    background: var(--color-primary);
    color: var(--color-white);
}

.portal-cta-section .btn-primary-portal:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
}

.portal-cta-section .btn-secondary-portal {
    border-color: rgba(255, 255, 255, 0.3);
}

.portal-cta-note {
    font-size: 14px;
    opacity: 0.7;
    margin-top: var(--spacing-md);
    color: var(--color-white);
}

/* Responsive Design */
@media (max-width: 900px) {
    .system-feature-grid {
        grid-template-columns: 1fr;
    }

    .system-header {
        flex-direction: column;
        text-align: center;
    }

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

@media (max-width: 768px) {
    .portal-hero {
        padding: 140px var(--spacing-sm) var(--spacing-2xl);
    }

    .portal-hero h1 {
        font-size: 36px;
    }

    .portal-hero-subtitle {
        font-size: 16px;
    }

    .portal-hero-features {
        gap: var(--spacing-sm);
    }

    .hero-feature {
        font-size: 12px;
    }

    .portal-hero-stats {
        gap: var(--spacing-md);
        padding: var(--spacing-md) 0;
    }

    .portal-hero-stats .hero-stat-value {
        font-size: 28px;
    }

    .portal-hero-stats .hero-stat-label {
        font-size: 12px;
    }

    .portal-hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary-portal,
    .btn-secondary-portal {
        width: 100%;
        max-width: 280px;
        text-align: center;
        justify-content: center;
    }

    .modules-overview-section {
        padding: var(--spacing-2xl) 0;
    }

    .modules-overview-section .section-header.center h2 {
        font-size: 28px;
    }

    .portal-modules-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .portal-module {
        padding: var(--spacing-md);
    }

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

    .systems-section .section-header h2 {
        font-size: 28px;
    }

    .system-header {
        padding: 20px var(--spacing-md);
    }

    .system-content {
        padding: var(--spacing-md);
    }

    .system-title h3 {
        font-size: 18px;
    }

    .portal-cta-section {
        padding: var(--spacing-2xl) 0;
    }

    .portal-cta-content h2 {
        font-size: 28px;
    }

    .portal-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .portal-cta-section .btn-primary-portal,
    .portal-cta-section .btn-secondary-portal {
        width: 100%;
        max-width: 280px;
        text-align: center;
        justify-content: center;
    }

    .container {
        padding: 0 20px;
    }
}

@media (max-width: 480px) {
    .portal-hero {
        padding: 120px var(--spacing-sm) 50px;
    }

    .portal-hero h1 {
        font-size: 28px;
    }

    .portal-hero-subtitle {
        font-size: 15px;
    }

    .portal-hero-stats {
        gap: var(--spacing-sm);
    }

    .portal-hero-stats .hero-stat-value {
        font-size: 24px;
    }

    .portal-hero-stats .hero-stat-label {
        font-size: 11px;
    }

    .system-icon {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }

    .module-icon {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

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

    .system-header {
        padding: var(--spacing-sm) 20px;
    }

    .system-content {
        padding: 20px;
    }

    .modules-overview-section .section-header.center h2,
    .systems-section .section-header h2 {
        font-size: 24px;
    }

    .portal-cta-content h2 {
        font-size: 24px;
    }
}

/* Print Styles */
@media print {
    .portal-hero {
        padding: var(--spacing-lg);
        background: var(--color-white);
        color: var(--color-dark);
    }

    .btn-primary-portal,
    .btn-secondary-portal {
        display: none;
    }

    .system-block {
        page-break-inside: avoid;
    }
}