* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ================================
   CSS VARIABLES (LIGHT MODE DEFAULT)
   ================================ */
:root {
    --primary-color: #A06872;
    --primary-dark: #8E5A65;
    --primary-light: #CC8E98;
    --secondary-color: #FDF5E6;
    --accent-color: #9E7F7F;
    --bg-color: #FFF9F9;
    --card-bg: #FFFFFF;
    --text-color: #8E5A65;
    --text-light: #8D6E63;
    --text-muted: #A89080;
    --border-color: rgba(255, 255, 255, 0.3);
    --note-bg: rgba(255, 255, 255, 0.25);
    --soft-shadow: 0 8px 25px rgba(160, 104, 114, 0.2);
}

/* ================================
   DARK MODE
   ================================ */
[data-theme="dark"] {
    --primary-color: #CC8E98;
    --primary-dark: #A06872;
    --primary-light: #E0A4AC;
    --secondary-color: #2D2D2D;
    --accent-color: #C0A0A0;
    --bg-color: #1A1A1A;
    --card-bg: #252525;
    --text-color: #8E5A65;
    --text-light: #B0B0B0;
    --text-muted: #808080;
    --border-color: rgba(255, 255, 255, 0.3);
    --note-bg: rgba(255, 255, 255, 0.25);
    --soft-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

/* ================================
   BODY & TRANSITIONS
   ================================ */
* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    min-height: 100vh;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-family: 'Segoe UI', sans-serif;
    gap: 25px;
}

/* ================================
   TOP CONTROLS (THEME TOGGLE)
   ================================ */
.top-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.theme-toggle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--soft-shadow);
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: rotate(15deg);
}

/* ================================
   DESIGN SELECTOR
   ================================ */
.design-selector {
    display: flex;
    gap: 10px;
}

.design-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #9E7F7F;
    cursor: pointer;
    transition: all 0.3s ease;
}

.design-dot.active {
    background: var(--primary-light);
    transform: scale(1.3);
}

/* ================================
   CARD FRAME (BASİT - 3D YOK)
   ================================ */
.card-frame {
    width: 100%;
    max-width: 420px;
    aspect-ratio: 85.6 / 54;
    border-radius: 18px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 60px rgba(160, 104, 114, 0.35);
    
}

.card-inner {
    width: 100%;
    height: 100%;
    position: absolute;
    inset: 0;
    
    transition: opacity 0.3s ease;
}

/* ================================
   FRONT SIDE (BASİT OPACITY)
   ================================ */
.card-front {
    position: absolute;
    inset: 0;
    
    border-radius: 18px;
    overflow: hidden;
    transition: opacity 0.3s ease;
}

.card-front img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none !important;
}

/* ================================
   BACK SIDE (BASİT OPACITY)
   ================================ */
.card-back {
    position: absolute;
    inset: 0;
    
    border-radius: 18px;
    overflow: hidden;
    transition: opacity 0.3s ease;
}

.card-back img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none !important;
}

.card-back .back-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 25px;
}

/* ================================
   FLIP DURUMU (OPACITY TABANLI)
   ================================ */
.card-front {
    opacity: 1;
    z-index: 2;
    pointer-events: auto;
}

.card-back {
    opacity: 0;
    z-index: 1;
    pointer-events: none;
}

.card-frame.is-flipped .card-front {
    opacity: 0;
    pointer-events: none;
}

.card-frame.is-flipped .card-back {
    opacity: 1;
    pointer-events: auto;
}

/* ================================
   PNG FADE EFFECT
   ================================ */
.card-inner.fade {
    opacity: 0.6;
}

/* ================================
   OVERLAY ACTIONS (ÖN BUTONLAR)
   ================================ */
.overlay-actions {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: flex;
    gap: 8px;
    z-index: 100;
}

.mini-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    position: relative;
}

.mini-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(211, 152, 198, 0.5);
    background: linear-gradient(90deg, #B76E79, #D398C6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    background-color: transparent;
}

.flip-hint {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(0, 0, 0, 0.3);
    padding: 4px 10px;
    border-radius: 12px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 10;
}

/* ================================
   BACK TITLE (GRADIENT TEXT)
   ================================ */
.back-title {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    background: linear-gradient(to right, #B76E79, #D398C6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* ================================
   QUICK LINKS
   ================================ */
.quick-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.quick-link {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: transparent;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: none;
    z-index: 100;
    cursor: pointer;
}

.quick-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(211, 152, 198, 0.5);
    background: linear-gradient(90deg, #B76E79, #D398C6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    background-color: transparent;
}

/* ================================
   BACK FLIP BUTTON (SOL ALT)
   ================================ */
.back-flip-btn {
    position: absolute;
    bottom: 12px;
    left: 12px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.back-flip-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(204, 142, 152, 0.5);
    background: transparent;
}

.back-flip-btn:hover i {
    background: linear-gradient(90deg, #B76E79, #D398C6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* ================================
   ACTION BAR (ALT BUTONLAR)
   ================================ */
.action-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 30px;
    border: 2px solid var(--primary-light);
    background: transparent;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.action-btn.primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.action-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* ================================
   TOAST NOTIFICATION
   ================================ */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 999;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* ================================
   RESPONSIVE MEDIA QUERIES
   ================================ */
@media (max-width: 480px) {
    .card-frame {
        max-width: 350px;
    }
    
    .action-btn {
        padding: 10px 18px;
        font-size: 0.85rem;
    }
    
    .theme-toggle {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .mini-btn, .back-flip-btn, .quick-link {
        z-index: 100 !important;
        touch-action: manipulation;
    }
}

/* ================================
   RTL SUPPORT FOR ARABIC
   ================================ */
[dir="rtl"] .top-controls {
    right: auto;
    left: 20px;
}

[dir="rtl"] .overlay-actions {
    right: auto;
    left: 12px;
}

[dir="rtl"] .back-flip-btn {
    left: auto;
    right: 12px;
}

[dir="rtl"] .flip-hint {
    right: auto;
    left: 12px;
}

[dir="rtl"] .design-dot {
    transform: scaleX(-1);
}

[dir="rtl"] .theme-toggle:hover {
    transform: rotate(-15deg);
}

[dir="rtl"] .back-title,
[dir="rtl"] .mini-btn:hover,
[dir="rtl"] .mini-btn:hover i,
[dir="rtl"] .quick-link:hover,
[dir="rtl"] .quick-link:hover i,
[dir="rtl"] .back-flip-btn:hover i {
    background: linear-gradient(270deg, #B76E79, #D398C6);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

[dir="rtl"] .toast {
    transform: translateX(50%) translateY(100px);
}

[dir="rtl"] .toast.show {
    transform: translateX(50%) translateY(0);
}

/* ================================
   iOS SPECIFIC FIXES
   ================================ */
@supports (-webkit-touch-callout: none) {
    .card-frame, .card-inner, .card-front, .card-back {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
    }
    
    .mini-btn, .back-flip-btn, .quick-link {
        -webkit-tap-highlight-color: transparent;
        min-width: 44px;
        min-height: 44px;
    }
}