/* ==============================================
   COURSES PAGE STYLES - ELEGANT & PROFESSIONAL
   ============================================== */

:root {
    --color-primary: #1e40af;
    --color-primary-light: #3b82f6;
    --color-secondary: #0369a1;
    --color-accent: #059669;
    --color-light-bg: #f0f9ff;
    --color-border: #dbeafe;
    --color-text-primary: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
}

/* ==============================================
   HERO SECTION V3
   ============================================== */

.hero-section-v3 {
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    padding: 5rem 0;
    position: relative;
}

.hero-content-v3 {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-eyebrow {
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.hero-section-v3 h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-description-v3 {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ==============================================
   PHASES SECTION - VERTICAL TIMELINE
   ============================================== */

.phases-overview {
    background: white;
    padding: 4rem 0;
    border-top: 1px solid var(--color-border);
}

.section-title {
    font-size: 2.5rem;
    color: var(--color-text-primary);
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Timeline Container */
.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

/* Vertical line connecting phases */
.timeline-container::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

/* Individual Phase Timeline Item */
.phase-timeline-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

/* Phase Number/Icon (Left side) */
.phase-timeline-dot {
    flex-shrink: 0;
    width: 80px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 0.5rem;
}

.phase-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    font-size: 1.75rem;
    font-weight: 800;
    box-shadow: 0 8px 20px rgba(30, 64, 175, 0.2);
    border: 4px solid white;
    position: relative;
    z-index: 10;
}

/* Phase Content (Right side) */
.phase-timeline-content {
    flex: 1;
    margin-left: 3rem;
    padding: 2rem;
    background: white;
    border-radius: 0.75rem;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.phase-timeline-content:hover {
    border-color: var(--color-primary);
    box-shadow: 0 12px 30px rgba(30, 64, 175, 0.1);
}

.phase-timeline-content h3 {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.phase-timeline-content > p:first-of-type {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Lists in timeline */
.tech-list,
.concepts-list,
.survival-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tech-list li,
.concepts-list li,
.survival-list li {
    padding: 0.75rem 0;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    position: relative;
    padding-left: 1.5rem;
}

.tech-list li::before,
.concepts-list li::before,
.survival-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.tech-list li strong,
.concepts-list li strong,
.survival-list li strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Highlight boxes in timeline */
.highlight-box-phase {
    background: linear-gradient(135deg, var(--color-light-bg) 0%, #ffffff 100%);
    border-left: 4px solid var(--color-primary);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin: 1.5rem 0;
    transition: all 0.3s ease;
}

.highlight-box-phase:hover {
    border-left-color: var(--color-secondary);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.08);
}

.highlight-box-phase p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.highlight-box-phase p:last-child {
    margin-bottom: 0;
}

.highlight-box-phase strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* Special content for Phase 2 - Pipeline Flow */
.pipeline-flow {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: flex-start;
    background: linear-gradient(135deg, var(--color-light-bg) 0%, #ffffff 100%);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    margin: 1rem 0;
}

.pipeline-flow span {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-radius: 0.375rem;
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
}

.pipeline-flow span:not(:last-child)::after {
    content: '→';
    margin: 0 0.5rem;
    color: var(--color-primary);
    font-weight: bold;
}


/* ==============================================
   COHORTS SECTION
   ============================================== */

.cohorts-section {
    background: white;
    padding: 4rem 0;
}

.cohorts-section .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.cohort-card {
    background: white;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.08);
    transition: all 0.3s ease;
    border-top: 5px solid var(--color-primary);
    margin-bottom: 0;
}

.cohort-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(30, 64, 175, 0.15);
    border-bottom: 3px solid var(--color-secondary);
}

.cohort-1 {
    border-top-color: #ff6b35;
}

.cohort-2 {
    border-top-color: #0077be;
}

.cohort-3 {
    border-top-color: #06a77d;
}

.cohort-header {
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
    padding: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.cohort-header h2 {
    font-size: 1.75rem;
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.cohort-role {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.cohort-body {
    padding: 2rem;
}

.stack-section,
.project-section,
.focus-section,
.career-path {
    background: linear-gradient(135deg, #f0f9ff 0%, #fafbff 100%);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.stack-section:hover,
.project-section:hover,
.focus-section:hover,
.career-path:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.1);
}

.stack-section h3,
.project-section h3,
.focus-section h3,
.career-path h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
}

.badge.aws {
    background: linear-gradient(135deg, #FF9900, #FFA922);
}

.badge.azure {
    background: linear-gradient(135deg, #0078D4, #0087DC);
}

.badge.open {
    background: linear-gradient(135deg, #06a77d, #13b89b);
}

.project-section p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.focus-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.focus-section ul li {
    padding: 0.5rem 0;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    position: relative;
    padding-left: 1.5rem;
}

.focus-section ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
    font-size: 1.1rem;
}

.career-path {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--color-light-bg) 0%, #ffffff 100%);
    border-left: 4px solid var(--color-primary);
}

.career-path p {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.career-path p:last-child {
    margin-bottom: 0;
}

/* ==============================================
   BONUS SECTION
   ============================================== */

.bonus-section {
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
    padding: 4rem 0;
}

.bonus-section .section-title {
    margin-bottom: 3rem;
}

.bonus-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.bonus-card {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    border: 2px solid var(--color-border);
    text-align: center;
    transition: all 0.3s ease;
}

.bonus-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 12px 30px rgba(30, 64, 175, 0.15);
    transform: translateY(-6px);
}

.bonus-card h3 {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.bonus-card p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ==============================================
   CTA SECTION V3
   ============================================== */

.cta-section-v3 {
    background: white;
    padding: 4rem 0;
}

.cta-box-v3 {
    text-align: center;
    padding: 4rem;
    background: linear-gradient(135deg, var(--color-light-bg) 0%, #ffffff 100%);
    border-radius: 1rem;
    border: 2px solid var(--color-border);
    transition: all 0.3s ease;
}

.cta-box-v3:hover {
    border-color: var(--color-primary);
    box-shadow: 0 12px 30px rgba(30, 64, 175, 0.15);
}

.cta-box-v3 h2 {
    font-size: 2.5rem;
    color: var(--color-text-primary);
    margin-bottom: 1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.cta-box-v3 p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==============================================
   BUTTON STYLES
   ============================================== */

.btn {
    display: inline-block;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: 0.75rem 1.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(30, 64, 175, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    padding: 0.75rem 1.5rem;
}

.btn-secondary:hover {
    background: var(--color-light-bg);
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.05rem;
}

/* ==============================================
   ENROLL BUTTON - HERO SECTION
   ============================================== */

.btn-enroll {
    display: inline-block;
    margin-top: 2rem;
    padding: 0.95rem 2.5rem;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.025em;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    text-decoration: none;
    border-radius: 0.6rem;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.25);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-enroll::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-enroll:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.35);
}

.btn-enroll:hover::before {
    width: 300px;
    height: 300px;
}

.btn-enroll:active {
    transform: translateY(-1px);
}

/* ==============================================
   COURSE START NOTIFICATION
   ============================================== */

.course-notification {
    position: fixed;
    top: 120px;
    right: 30px;
    background: white;
    border-radius: 0.75rem;
    padding: 1.2rem;
    box-shadow: 0 10px 40px rgba(30, 64, 175, 0.15);
    border: 1px solid var(--color-border);
    border-left: 5px solid var(--color-primary);
    z-index: 1000;
    animation: slideInRight 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-width: 280px;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-badge {
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-light-bg), #ffffff);
    border-radius: 50%;
    flex-shrink: 0;
}

.notification-text {
    flex: 1;
}

.notification-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
    margin-bottom: 0.3rem;
    animation: labelShine 2s ease-in-out infinite;
}

@keyframes labelShine {
    0% {
        opacity: 1;
        color: var(--color-secondary);
        transform: scale(1);
        text-shadow: 0 0 0 rgba(3, 105, 161, 0);
    }
    50% {
        opacity: 1;
        color: var(--color-primary);
        transform: scale(1.05);
        text-shadow: 0 0 8px rgba(3, 105, 161, 0.6);
    }
    100% {
        opacity: 1;
        color: var(--color-secondary);
        transform: scale(1);
        text-shadow: 0 0 0 rgba(3, 105, 161, 0);
    }
}

.notification-date {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(300px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==============================================
   RESPONSIVE DESIGN
   ============================================== */

@media (max-width: 1200px) {
    .phases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .cohort-body {
        grid-template-columns: 1fr;
    }

    .career-path {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .hero-section-v3 h1 {
        font-size: 2.5rem;
    }

    .hero-description-v3 {
        font-size: 1.05rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .phase-timeline-item {
        margin-bottom: 2rem;
    }

    .phase-timeline-dot {
        width: 70px;
    }

    .phase-number {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .phase-timeline-content {
        margin-left: 2rem;
        padding: 1.5rem;
    }

    .phase-timeline-content h3 {
        font-size: 1.25rem;
    }

    .timeline-container::before {
        left: 30px;
    }

    .phase-section {
        padding: 3rem 0;
    }

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

    .cta-box-v3 {
        padding: 2rem;
    }

    .cta-box-v3 h2 {
        font-size: 2rem;
    }

    .pipeline-flow {
        justify-content: flex-start;
        font-size: 0.8rem;
    }

    .pipeline-flow span {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }

    .cohort-header {
        padding: 1.5rem;
    }

    .cohort-body {
        padding: 1.5rem;
    }

    .tech-badges {
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .hero-section-v3 {
        padding: 3rem 0;
    }

    .hero-section-v3 h1 {
        font-size: 1.75rem;
    }

    .hero-description-v3 {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .phase-card {
        padding: 1.5rem;
    }

    .phase-card h3 {
        font-size: 1.1rem;
    }

    .phases-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .phase-timeline-item {
        margin-bottom: 1.5rem;
    }

    .phase-timeline-dot {
        width: 60px;
    }

    .phase-number {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }

    .phase-timeline-content {
        margin-left: 1.5rem;
        padding: 1rem;
    }

    .phase-timeline-content h3 {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }

    .phase-timeline-content > p:first-of-type {
        font-size: 0.85rem;
    }

    .tech-list li,
    .concepts-list li,
    .survival-list li {
        font-size: 0.8rem;
        padding: 0.5rem 0;
    }

    .timeline-container::before {
        left: 22px;
    }

    .bonus-card {
        padding: 1.5rem;
    }

    .bonus-card h3 {
        font-size: 1.1rem;
    }

    .cta-box-v3 {
        padding: 1.5rem;
    }

    .cta-box-v3 h2 {
        font-size: 1.5rem;
    }

    .cta-actions {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn {
        width: 100%;
    }

    .tech-badges {
        gap: 0.5rem;
    }

    .badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .pipeline-flow {
        font-size: 0.75rem;
        padding: 1rem;
    }

    .pipeline-flow span {
        padding: 0.3rem 0.6rem;
        font-size: 0.7rem;
    }
}

/* Responsive styles for Enroll Button */
@media (max-width: 768px) {
    .btn-enroll {
        padding: 0.85rem 2rem;
        font-size: 0.95rem;
        margin-top: 1.5rem;
    }
}

@media (max-width: 480px) {
    .btn-enroll {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        margin-top: 1.25rem;
    }
}

/* Responsive styles for Course Notification */
@media (max-width: 1200px) {
    .course-notification {
        right: 20px;
        top: 110px;
    }
}

@media (max-width: 768px) {
    .course-notification {
        position: fixed;
        top: auto;
        bottom: 20px;
        right: 15px;
        left: auto;
        max-width: 320px;
        animation: slideInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    @keyframes slideInUp {
        from {
            opacity: 0;
            transform: translateY(300px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

@media (max-width: 480px) {
    .course-notification {
        max-width: calc(100vw - 30px);
        padding: 1rem;
    }

    .notification-badge {
        width: 42px;
        height: 42px;
        font-size: 1.5rem;
    }

    .notification-label {
        font-size: 0.7rem;
    }

    .notification-date {
        font-size: 1rem;
    }
}

/* Inline Icons */
.icon-inline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-right: 0.4rem;
    vertical-align: middle;
}

.icon-inline svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
    stroke: var(--color-primary);
    color: var(--color-primary);
}

/* Responsive Cohorts Grid */
@media (max-width: 1200px) {
    .cohorts-section .container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cohorts-section .container {
        grid-template-columns: 1fr;
    }
}