/* Flight Delay Prediction System - Premium SaaS Dashboard Design */

/* ===== IMPORTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
    /* Primary Colors */
    --deep-navy: #0B2A4A;
    --primary-blue: #2F80ED;
    --hover-blue: #1C6ED5;
    --secondary-blue: #56CCF2;
    
    /* Text Colors */
    --heading-color: #1A2B3C;
    --subheading-color: #4A5D73;
    --secondary-text: #7A8CA5;
    --white-text: #FFFFFF;
    
    /* Background Colors */
    --glass-white: rgba(255, 255, 255, 0.92);
    --glass-light: rgba(245, 247, 250, 0.95);
    --glass-dark: rgba(11, 42, 74, 0.85);
    
    /* Chart Colors */
    --chart-green: #27AE60;
    --chart-orange: #F2994A;
    --chart-red: #EB5757;
    
    /* Shadows */
    --card-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    --hover-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body::before { content: ''; position: fixed; inset: 0; background: rgba(255, 255, 255, 0.6); z-index: 0; }
body {
    background: url('/static/images/background.png') center center / cover no-repeat fixed !important;
}



/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--deep-navy);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 12px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
/* Logo Styling */
.navbar-logo {
    height: 50px;
    width: auto;
    margin-right: 12px;
    object-fit:contain;
    mix-blend-mode:screen;
    transition: transform 0.3s ease;
}

.navbar-logo:hover {
    transform: scale(1.05);
}

/* Update navbar-brand to include logo */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white-text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    
}

.navbar-brand span {
    vertical-align: middle;

    
    font-family: 'Orbitron', sans-serif;
    font-weight: 600;
    letter-spacing: 1px;
}

.nav-menu, .nav-links {
    display: flex;
    list-style: none;
    gap: 22px;
    align-items: center;
    margin: 0;
}

.nav-menu li, .nav-links li {
    color: var(--white-text);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu li:hover, .nav-links li:hover {
    color: var(--secondary-blue);
}
.nav-links a {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 14.5px;
    letter-spacing: 0.4px;
    color: rgba(255, 255, 255, 0.85);  /* 🔥 softer white */
    text-decoration: none;
    position: relative;
    transition: all 0.25s ease;
}

.nav-links a:hover {
    color: #60a5fa;   /* soft blue */
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0%;
    height: 2px;
    background: #60a5fa;
    transition: width 0.3s ease;
}

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

.nav-button {
    background: var(--primary-blue);
    color: var(--white-text);
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.nav-button:hover {
    background: var(--hover-blue);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(47, 128, 237, 0.3);
}

/* ===== HERO SECTION ===== */
.hero {
    padding-top: 100px;
}
.hero-section {
    padding: 6rem 1rem;
    margin: 0;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--heading-color);
    margin-bottom: 1.5rem;
    max-width: 600px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--subheading-color);
    margin-bottom: 2.5rem;
    max-width: 500px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.flight-status-board {
    background: var(--glass-white);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 400px;
    margin-left: auto;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    position: relative;
}

.status-dot.status-on-time {
    background: var(--chart-green);
}

.status-dot.status-delayed {
    background: var(--chart-red);
}

.status-dot::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background: inherit;
    opacity: 0.3;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.5); opacity: 0; }
}

/* ===== BUTTONS ===== */
.btn-primary {
    background: var(--primary-blue);
    color: var(--white-text);
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--hover-blue);
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
}

.btn-secondary {
    background: var(--glass-white);
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

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

/* ===== SECTION SPACING ===== */
.section-spacing {
    padding: 80px 0;
    position: relative;
}

/* ===== FEATURE CARDS ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: var(--glass-white);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 15px;
}

.feature-description {
    color: var(--subheading-color);
    line-height: 1.6;
}

/* ===== PIPELINE SECTION ===== */
.pipeline-section {
    background: rgba(245, 247, 250, 0.95);
    padding: 60px 1rem;
    margin-bottom: 60px;
}

.pipeline-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 60px;
    position: relative;
}

.pipeline-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    color: var(--white-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    margin: 0 auto 20px;
    position: relative;
    z-index: 2;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--heading-color);
    margin-bottom: 10px;
}

.step-description {
    color: var(--subheading-color);
    line-height: 1.5;
}

/* ===== DASHBOARD GRID ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.dashboard-card {
    background: var(--glass-white);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.dashboard-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--hover-shadow);
}

.chart-container {
    height: 300px;
    position: relative;
}

/* Larger charts for performance data with long names */
.performance-chart {
    height: 450px !important;
    min-height: 450px;
}

.performance-chart canvas {
    max-height: 400px !important;
}

/* ===== ABOUT ME SECTION ===== */
.about-me-container {
    max-width: 800px;
    margin: 0 auto;
}

.about-me-card {
    background: var(--glass-white);
    backdrop-filter: blur(6px);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.about-me-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.about-me-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(74, 93, 115, 0.1);
}

.about-me-avatar {
    flex-shrink: 0;
}

.about-me-title {
    flex: 1;
}

.about-me-content {
    margin-bottom: 2.5rem;
}

.about-me-skills {
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.about-me-contact {
    text-align: center;
}

.contact-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.contact-button {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    min-width: 280px;
    justify-content: center;
}

.contact-icon {
    font-size: 1.2rem;
}

.email-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.email-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.linkedin-button {
    background: linear-gradient(135deg, #0077b5 0%, #005885 100%);
    color: white;
}

.linkedin-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 119, 181, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .about-me-header {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .about-me-card {
        padding: 2rem 1.5rem;
    }
    
    .contact-buttons {
        align-items: stretch;
    }
    
    .contact-button {
        min-width: auto;
    }
    
    .skills-grid {
        justify-content: center;
    }
}

.metric-card {
    text-align: center;
    padding: 30px;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.metric-label {
    color: var(--subheading-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* ===== PREDICTION FORM ===== */
.prediction-form {
    background: var(--glass-white);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: 40px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 600;
    color: var(--heading-color);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-input,
.form-select {
    padding: 12px 16px;
    border: 2px solid rgba(47, 128, 237, 0.2);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--glass-white);
    color: var(--heading-color);
    transition: var(--transition);
    font-family: inherit;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(47, 128, 237, 0.1);
}

.form-select {
    cursor: pointer;
}

/* ===== PREDICTION RESULT ===== */
.prediction-result {
    background: var(--glass-white);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    margin-bottom: 30px;
    display: none;
}

.result-probability {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.result-probability.result-ontime {
    color: var(--chart-green);
}

.result-probability.result-delayed {
    color: var(--chart-red);
}

.result-label {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.result-label.result-ontime {
    color: var(--chart-green);
}

.result-label.result-delayed {
    color: var(--chart-red);
}

.result-description {
    color: var(--subheading-color);
    line-height: 1.6;
}

/* ===== IMPACT SECTION ===== */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.impact-card {
    background: var(--glass-dark);
    backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: var(--transition);
    color: var(--white-text);
}

.impact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.impact-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.impact-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.impact-description {
    line-height: 1.6;
    opacity: 0.9;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--deep-navy);
    color: var(--white-text);
    padding: 60px 0 30px;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--white-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--secondary-blue);
}

.footer-copyright {
    margin-bottom: 15px;
    opacity: 0.8;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .flight-status-board {
        margin-top: 30px;
        margin-left: 0;
        max-width: 100%;
    }
    
    .features-grid,
    .dashboard-grid,
    .impact-grid {
        grid-template-columns: 1fr;
    }
    
    .pipeline-steps {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-section {
        padding: 100px 0 60px;
    }
    
    .section-spacing {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .prediction-form {
        padding: 25px;
    }
}

/* ===== PARALLAX EFFECT ===== */
.parallax-element {
    transition: transform 0.1s ease-out;
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-blue);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--hover-blue);
}
body {
    padding-top: 80px;
}