/* ============================================
   SHARKODE x SEO FRITZ PRESENTATION
   Premium Design System - Gold Edition
   ============================================ */

/* CSS Variables */
:root {
    --color-primary: #2196f3;
    --color-primary-light: #64b5f6;
    --color-primary-dark: #1976d2;
    --color-accent: #00bcd4;

    /* Gold Theme */
    --color-gold: #d4a853;
    --color-gold-light: #e8c97a;
    --color-gold-dark: #b8923d;
    --color-bronze: #cd7f32;

    --color-gradient-start: #2196f3;
    --color-gradient-end: #00bcd4;
    --color-gradient-gold-start: #d4a853;
    --color-gradient-gold-end: #b8923d;

    --color-bg-dark: #0a0a0f;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-bg-card-hover: rgba(255, 255, 255, 0.08);

    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.5);

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    --shadow-glow: 0 0 40px rgba(33, 150, 243, 0.3);
    --shadow-glow-gold: 0 0 40px rgba(212, 168, 83, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);

    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;

    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html,
body {
    height: 100%;
    overflow: hidden;
}

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

/* Presentation Container */
.presentation-container {
    width: 100%;
    height: 100vh;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0f 0%, #12100e 50%, #0a0a0f 100%);
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 1000;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-gradient-gold-start), var(--color-gradient-gold-end));
    width: 10%;
    transition: width var(--transition-medium);
    box-shadow: 0 0 10px var(--color-gold);
}

/* Navigation Controls */
.nav-controls {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 100;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    padding: 12px 24px;
    border-radius: 50px;
    border: 1px solid rgba(212, 168, 83, 0.2);
}

.nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    background: var(--color-gold);
    transform: scale(1.1);
    box-shadow: var(--shadow-glow-gold);
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none;
}

.slide-counter {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    min-width: 60px;
    text-align: center;
}

/* Slides Wrapper */
.slides-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

/* Individual Slide */
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 80px;
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-content {
    width: 100%;
    max-width: 1400px;
    position: relative;
    z-index: 2;
}

/* Slide Background Gradient */
.slide-bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 30% 20%, rgba(33, 150, 243, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(0, 188, 212, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.slide-bg-gradient.gold {
    background: radial-gradient(ellipse at 30% 20%, rgba(212, 168, 83, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(184, 146, 61, 0.1) 0%, transparent 50%);
}

/* ============================================
   GRADIENT TEXT VARIATIONS
   ============================================ */

.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-gold {
    background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   PARTNER LOGOS (Cover Slide)
   ============================================ */

.partner-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}

.partner-logos.small {
    gap: 16px;
    margin-bottom: 24px;
}

.logo-partner.sharkode {
    width: 200px;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(33, 150, 243, 0.4));
}

.logo-partner.client {
    width: 250px;
    height: auto;
    filter: drop-shadow(0 0 20px rgba(212, 168, 83, 0.4));
}

.logo-partner.sharkode.small {
    width: 140px;
}

.logo-partner.client.small {
    width: 180px;
}

.logo-divider {
    font-size: 32px;
    color: var(--color-gold);
    font-weight: 300;
}

/* ============================================
   SLIDE LAYOUTS
   ============================================ */

/* Cover Slide */
.slide-cover {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.logo-container {
    margin-bottom: 20px;
}

.logo {
    width: 280px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 20px rgba(33, 150, 243, 0.4));
}

.title-main {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: clamp(1rem, 1.8vw, 1.3rem);
    color: var(--color-text-secondary);
    max-width: 700px;
}

.badge-container {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.badge {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.badge.gold {
    border-color: rgba(212, 168, 83, 0.4);
    background: rgba(212, 168, 83, 0.1);
    color: var(--color-gold-light);
}

.scroll-indicator {
    position: absolute;
    bottom: 120px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 14px;
}

/* Two Column Layout */
.slide-two-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.slide-two-cols.reverse {
    direction: rtl;
}

.slide-two-cols.reverse>* {
    direction: ltr;
}

.col-text {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.col-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-image {
    max-width: 100%;
    max-height: 600px;
    width: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-medium);
}

.floating-image:hover {
    transform: scale(1.02);
}

.floating-image.glow {
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

.floating-image.glow-gold {
    box-shadow: var(--shadow-card), var(--shadow-glow-gold);
}

/* Labels */
.label {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
}

.label.gold {
    color: var(--color-gold);
}

.text-lg {
    font-size: 18px;
    color: var(--color-text-secondary);
}

/* Feature List */
.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border-radius: var(--border-radius-sm);
    font-size: 24px;
    flex-shrink: 0;
}

.feature-icon.gold {
    background: rgba(212, 168, 83, 0.1);
    border: 1px solid rgba(212, 168, 83, 0.2);
}

.feature-list strong {
    display: block;
    font-size: 18px;
    margin-bottom: 4px;
}

.feature-list span {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* Centered Slide */
.slide-centered {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.slide-centered h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
}

/* ============================================
   CHALLENGE CARDS
   ============================================ */

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    width: 100%;
}

.challenge-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition-fast);
}

.challenge-card:hover {
    background: var(--color-bg-card-hover);
    transform: translateY(-5px);
    border-color: rgba(212, 168, 83, 0.3);
}

.challenge-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.challenge-card h3 {
    font-size: 15px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.challenge-card p {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* ============================================
   SOLUTION BENEFITS
   ============================================ */

.solution-benefits {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(33, 150, 243, 0.08);
    border-radius: var(--border-radius-sm);
    font-size: 15px;
}

.benefit-icon {
    color: var(--color-accent);
    font-weight: 700;
}

/* ============================================
   COMPARISON CONTAINER
   ============================================ */

.comparison-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    width: 100%;
    max-width: 1100px;
}

.comparison-item {
    flex: 1;
    max-width: 400px;
}

.comparison-img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-card);
}

.comparison-label {
    margin-top: 16px;
    text-align: center;
}

.label-tag {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.label-tag.before {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-secondary);
}

.label-tag.after {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    color: white;
}

.label-tag.after.gold {
    background: linear-gradient(135deg, var(--color-gradient-gold-start), var(--color-gradient-gold-end));
}

.comparison-label p {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.comparison-arrow {
    flex-shrink: 0;
}

.arrow-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    box-shadow: var(--shadow-glow);
    animation: pulse 2s ease-in-out infinite;
}

.arrow-circle.gold {
    background: linear-gradient(135deg, var(--color-gradient-gold-start), var(--color-gradient-gold-end));
    box-shadow: var(--shadow-glow-gold);
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* ============================================
   DUAL SHOWCASE
   ============================================ */

.dual-showcase {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    width: 100%;
    max-width: 1000px;
}

.showcase-item {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.showcase-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.showcase-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
}

.showcase-caption h4 {
    font-size: 18px;
    margin-bottom: 4px;
}

.showcase-caption p {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* ============================================
   STEPS LIST
   ============================================ */

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    border-radius: 50%;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content strong {
    display: block;
    font-size: 18px;
    margin-bottom: 4px;
}

.step-content p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ============================================
   PROMPTS GRID
   ============================================ */

.prompts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    width: 100%;
    max-width: 1100px;
}

.prompt-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    text-align: left;
    transition: all var(--transition-fast);
}

.prompt-card.gold-border {
    border-color: rgba(212, 168, 83, 0.2);
}

.prompt-card:hover {
    border-color: rgba(212, 168, 83, 0.4);
    transform: translateY(-3px);
}

.prompt-category {
    padding: 16px 20px;
    background: rgba(212, 168, 83, 0.08);
    font-weight: 600;
    font-size: 15px;
    border-bottom: 1px solid rgba(212, 168, 83, 0.1);
}

.prompt-text-box {
    padding: 20px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-gold-light);
    font-family: 'Monaco', 'Consolas', monospace;
}

/* ============================================
   GALLERY GRID
   ============================================ */

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 100%;
    max-width: 1200px;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    cursor: pointer;
}

.gallery-item.large {
    grid-column: span 2;
}

.gallery-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.gallery-item.large img {
    height: 180px;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    font-size: 14px;
    font-weight: 600;
}

/* ============================================
   FINAL SLIDE
   ============================================ */

.slide-final {
    gap: 20px;
}

.slide-final h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700;
}

.services-mini {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.service-tag {
    padding: 10px 20px;
    background: rgba(255, 152, 0, 0.1);
    border: 1px solid rgba(255, 152, 0, 0.3);
    border-radius: 50px;
    font-size: 14px;
    color: var(--color-gold-light);
}

.service-tag.gold {
    background: rgba(212, 168, 83, 0.1);
    border-color: rgba(212, 168, 83, 0.3);
}

.cta-buttons {
    margin-top: 12px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 20px rgba(33, 150, 243, 0.4);
}

.btn-primary.gold {
    background: linear-gradient(135deg, var(--color-gradient-gold-start), var(--color-gradient-gold-end));
    box-shadow: 0 4px 20px rgba(212, 168, 83, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(212, 168, 83, 0.5);
}

.contact-info {
    display: flex;
    gap: 40px;
    margin-top: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-secondary);
    font-size: 16px;
}

.thank-you {
    font-size: 28px;
    font-weight: 800;
    margin-top: 12px;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(5px);
    }
}

/* Animation Classes */
.slide.active .animate-float {
    animation: float 3s ease-in-out infinite;
}

.slide.active .animate-fade-up {
    animation: fadeUp 0.8s ease forwards;
}

.slide.active .animate-slide-right {
    animation: slideRight 0.8s ease forwards;
}

.slide.active .animate-slide-left {
    animation: slideLeft 0.8s ease forwards;
}

.slide.active .animate-scale-in {
    animation: scaleIn 0.8s ease forwards;
}

.slide.active .animate-bounce {
    animation: bounce 1.5s ease-in-out infinite;
}

/* Animation Delays */
.delay-1 {
    animation-delay: 0.15s !important;
    opacity: 0;
}

.delay-2 {
    animation-delay: 0.3s !important;
    opacity: 0;
}

.delay-3 {
    animation-delay: 0.45s !important;
    opacity: 0;
}

.delay-4 {
    animation-delay: 0.6s !important;
    opacity: 0;
}

.delay-5 {
    animation-delay: 0.75s !important;
    opacity: 0;
}

.delay-6 {
    animation-delay: 0.9s !important;
    opacity: 0;
}

.slide.active .delay-1,
.slide.active .delay-2,
.slide.active .delay-3,
.slide.active .delay-4,
.slide.active .delay-5,
.slide.active .delay-6 {
    animation-fill-mode: forwards;
}

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

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

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

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

    .gallery-item.large {
        grid-column: span 1;
    }

    .dual-showcase {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .slide {
        padding: 40px 20px;
        overflow-y: auto;
        display: block;
    }

    .slide-content {
        padding-bottom: 120px;
    }

    .slide-two-cols {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .slide-two-cols.reverse {
        direction: ltr;
    }

    .col-image {
        order: -1;
    }

    .floating-image {
        max-height: 300px;
        margin: 0 auto;
    }

    .comparison-container {
        flex-direction: column;
        gap: 24px;
        align-items: center;
    }

    .comparison-arrow {
        transform: rotate(90deg);
    }

    .partner-logos {
        flex-direction: row;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .logo-partner.sharkode {
        width: 150px;
    }

    .logo-partner.client {
        width: 180px;
    }

    .logo-divider {
        display: block;
    }

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

    .feature-list li {
        text-align: left;
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .slide {
        padding: 20px 15px;
    }

    .title-main {
        font-size: 28px;
    }

    .slide-centered h2 {
        font-size: 24px;
    }

    .challenge-grid,
    .gallery-grid,
    .prompts-grid {
        grid-template-columns: 1fr;
    }

    .dual-showcase {
        grid-template-columns: 1fr;
    }

    .nav-controls {
        bottom: 10px;
        padding: 6px 12px;
        gap: 10px;
    }

    .nav-btn {
        width: 40px;
        height: 40px;
    }

    .logo-partner.sharkode {
        width: 120px;
    }

    .logo-partner.client {
        width: 150px;
    }

    .contact-info {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }

    .services-mini {
        flex-direction: column;
        gap: 8px;
    }
}