/* ============================================
   KARMÄ°K NUMEROLOJÄ° - DARK THEME CSS
   Sade, Şık, Zamansız Tasarım
   ============================================ */

/* --------------------------------------------
   CSS VARIABLES
   -------------------------------------------- */
:root {
    /* Renkler - Dark Theme */
    --bg-primary: #0a0a0a;
    --bg-secondary: #121212;
    --bg-tertiary: #1a1a1a;
    --bg-elevated: #1e1e1e;

    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;

    --accent: #1f9d77;
    --accent-hover: #2bbf91;
    --accent-light: #cdebe0;
    --accent-turquoise: #2dd4bf;

    --border: #2a2a2a;
    --border-light: #3a3a3a;

    --success: #4ade80;
    --error: #f87171;
    --warning: #fbbf24;
    --info: #60a5fa;

    /* Tipografi */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Boyutlar */
    --container-max: 1200px;
    --header-height: 76px;

    /* Animasyonlar */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------
   TYPOGRAPHY
   -------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

/* --------------------------------------------
   LAYOUT
   -------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

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

/* --------------------------------------------
   HEADER & NAVIGATION
   -------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e8e2d9;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 56px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: none;
}

/* Eski logo class'ı (footer gibi yerler için) */
.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--text-primary);
    letter-spacing: 0.05em;
}

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

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: #555;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: #1a1a1a;
}

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #333;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.98);
        border-bottom: 1px solid #e8e2d9;
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .menu-toggle {
        display: block;
    }
}

/* Lang Switcher */
.lang-switcher {
    display: flex;
    gap: 0.25rem;
    margin-left: 0.5rem;
}

.lang-link {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.2rem;
    border-radius: 3px;
    opacity: 0.65;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.lang-link .fi {
    width: 22px;
    height: 16px;
    border-radius: 2px;
}

.lang-link:hover {
    opacity: 1;
    transform: scale(1.12);
}

/* --------------------------------------------
   BUTTONS
   -------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: uppercase;
}

.btn-primary {
    background-color: var(--accent);
    color: #0a0a0a;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #0a0a0a;
    transform: translateY(-2px);
    box-shadow: 0 10px 36px rgba(31,157,119,0.38);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(31,157,119,0.28);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
}

.btn-lg {
    padding: 1.1rem 3rem;
    font-size: 0.8rem;
}

/* --------------------------------------------
   HERO SECTION
   -------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--header-height) + 3rem) 0 3rem;
    background: radial-gradient(ellipse at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-title span {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-weight: 300;
}

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

/* --------------------------------------------
   CARDS
   -------------------------------------------- */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 2px;
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(31,157,119,0.3);
    box-shadow: 0 24px 64px rgba(0,0,0,0.55), 0 0 0 1px rgba(31,157,119,0.12);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--bg-tertiary);
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.card-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.card-price {
    font-size: 1.25rem;
    color: var(--accent);
    font-family: var(--font-heading);
}

/* --------------------------------------------
   COURSE GRID
   -------------------------------------------- */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

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

/* --------------------------------------------
   FEATURES
   -------------------------------------------- */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    counter-reset: feature-counter;
}

@media (max-width: 900px) {
    .features { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
    .features { grid-template-columns: 1fr; }
}

.feature {
    padding: 2.5rem 2.5rem 2.5rem 0;
    border-top: 1px solid var(--border);
    position: relative;
    text-align: left;
    transition: border-top-color 0.3s ease;
    counter-increment: feature-counter;
}

.feature + .feature {
    padding-left: 2.5rem;
    border-left: 1px solid var(--border);
}

.feature:nth-child(3) ~ .feature {
    padding-top: 2.5rem;
}

.feature::before {
    content: "0" counter(feature-counter);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--accent);
    letter-spacing: 0.25em;
    display: block;
    margin-bottom: 1.5rem;
    opacity: 0.7;
}

.feature:hover {
    border-top-color: var(--accent);
}

.feature-icon {
    display: none;
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--text-primary);
    transition: color 0.3s ease;
    line-height: 1.2;
}

.feature:hover .feature-title {
    color: var(--accent-light);
}

.feature-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.85;
    font-weight: 300;
}

/* --------------------------------------------
   ABOUT SECTION
   -------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.about-image {
    width: 100%;
    object-fit: cover;
    border-radius: 8px;
    filter: grayscale(20%);
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-credentials {
    list-style: none;
}

.about-credentials li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.about-credentials li::before {
    content: "\2726";
    color: var(--accent);
}

/* --------------------------------------------
   FORMS
   -------------------------------------------- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-help {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* --------------------------------------------
   ALERTS
   -------------------------------------------- */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.alert-success {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-error {
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.alert-warning {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.alert-info {
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid var(--info);
    color: var(--info);
}

/* --------------------------------------------
   STICKY SOCIAL FLOAT
   -------------------------------------------- */
@keyframes social-slide-in {
    from { transform: translateX(80px); opacity: 0; }
    to   { transform: translateX(0);    opacity: 1; }
}

@keyframes social-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(31,157,119,0); }
    50%       { box-shadow: 0 0 0 6px rgba(31,157,119,0.12); }
}

.social-float {
    position: fixed;
    right: 1.25rem;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    z-index: 900;
}

.social-float-btn {
    display: flex;
    align-items: center;
    gap: 0;
    background: rgba(18,18,18,0.92);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50px;
    padding: 0.8rem;
    color: #e1306c;
    text-decoration: none;
    overflow: hidden;
    max-width: 46px;
    transition: max-width 0.4s cubic-bezier(0.4,0,0.2,1),
                padding      0.4s cubic-bezier(0.4,0,0.2,1),
                border-color 0.3s ease,
                box-shadow   0.3s ease,
                background   0.3s ease;
    backdrop-filter: blur(8px);
    animation: social-slide-in 0.6s cubic-bezier(0.4,0,0.2,1) both;
}

/* Instagram — gradient icon */
.social-float-btn:nth-child(1) {
    animation-delay: 0.1s;
    color: #e1306c;
}

/* WhatsApp — yeşil icon */
.social-float-btn--wa {
    animation-delay: 0.25s;
    color: #25d366;
}

.social-float-btn svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

/* Instagram SVG gradient */
.social-float-btn:nth-child(1) svg {
    stroke: url(#ig-gradient);
}

.social-float-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    white-space: nowrap;
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-width 0.4s cubic-bezier(0.4,0,0.2,1),
                opacity   0.3s ease,
                margin    0.4s ease;
}

/* Instagram hover */
.social-float-btn:nth-child(1):hover {
    max-width: 160px;
    padding: 0.8rem 1.15rem;
    border-color: rgba(225,48,108,0.4);
    background: rgba(20,10,18,0.96);
    box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(225,48,108,0.2);
}

.social-float-btn:nth-child(1):hover .social-float-label {
    max-width: 100px;
    opacity: 1;
    margin-left: 0.6rem;
    color: #e1306c;
}

/* WhatsApp hover */
.social-float-btn--wa:hover {
    max-width: 160px;
    padding: 0.8rem 1.15rem;
    border-color: rgba(37,211,102,0.4);
    background: rgba(8,20,12,0.96);
    box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(37,211,102,0.2);
}

.social-float-btn--wa:hover .social-float-label {
    max-width: 100px;
    opacity: 1;
    margin-left: 0.6rem;
    color: #25d366;
}

.social-float-btn:hover svg {
    transform: scale(1.12);
}

/* Periyodik nabız */
.social-float-btn {
    animation: social-slide-in 0.6s cubic-bezier(0.4,0,0.2,1) both,
               social-pulse    3s ease-in-out 2s infinite;
}

.social-float-btn:nth-child(2) {
    animation-delay: 0.25s, 2.5s;
}

@media (max-width: 480px) {
    .social-float { right: 0.75rem; bottom: 1.25rem; }
}

/* --------------------------------------------
   FOOTER
   -------------------------------------------- */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 3rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
}

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-brand p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.footer-title {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

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

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

.footer-bottom {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --------------------------------------------
   DASHBOARD
   -------------------------------------------- */
.dashboard {
    padding-top: calc(var(--header-height) + 2rem);
    min-height: 100vh;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.sidebar {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    height: fit-content;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--bg-tertiary);
    color: var(--accent);
}

.dashboard-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
}

/* --------------------------------------------
   VIDEO PLAYER
   -------------------------------------------- */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    background: var(--bg-tertiary);
    border-radius: 8px;
    overflow: hidden;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.lesson-list {
    list-style: none;
}

.lesson-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.lesson-item:hover {
    background: var(--bg-tertiary);
}

.lesson-item.active {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
}

.lesson-item.completed .lesson-check {
    color: var(--success);
}

.lesson-number {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 50%;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-right: 1rem;
}

.lesson-check {
    margin-right: 0.75rem;
    color: var(--text-muted);
}

.lesson-info {
    flex: 1;
}

.lesson-title {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.lesson-duration {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --------------------------------------------
   PROGRESS BAR
   -------------------------------------------- */
.progress-bar {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    transition: width var(--transition-base);
}

/* --------------------------------------------
   BADGES
   -------------------------------------------- */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
}

.badge-basic {
    background: rgba(96, 165, 250, 0.1);
    color: var(--info);
}

.badge-advanced {
    background: rgba(251, 191, 36, 0.1);
    color: var(--warning);
}

.badge-instructor {
    background: rgba(248, 113, 113, 0.1);
    color: var(--error);
}

/* --------------------------------------------
   UTILITIES
   -------------------------------------------- */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* --------------------------------------------
   ANIMATIONS
   -------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade {
    animation: fadeIn var(--transition-base);
}

.animate-slide-up {
    animation: slideUp var(--transition-slow);
}

/* --------------------------------------------
   LOADING SPINNER
   -------------------------------------------- */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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