:root {
    /* Dark mode palette */
    --primary-color: #7c9cff;      /* Akzent (Buttons, aktive Elemente) */
    --secondary-color: #5b7df0;    /* Hover / sekundär */
    --accent-color: #60a5fa;       /* Akzent für Highlights */
    --light-color: #0b1220;        /* Seiten-Hintergrund (sehr dunkel) */
    --dark-color: #e6eef8;         /* Haupttext (hell) */
    --muted-color: #98a0aa;        /* Nebentext */
    --surface-color: #0f1724;      /* Karten / Panels */
    --card-color: #0c1320;         /* leichte Variation für Karten */
    --border-color: rgba(255,255,255,0.06);
    --success-color: #34d399;
    --danger-color: #ff6b9f;
    --warning-color: #f59e0b;
    --info-color: #60a5fa;
    --border-radius: 10px;
    --box-shadow: 0 10px 30px rgba(2,6,23,0.6), 0 1px 0 rgba(255,255,255,0.02) inset;
    --soft-glow: 0 6px 20px rgba(96,165,250,0.08);
    --transition: all 0.22s cubic-bezier(.2,.9,.2,1);
}

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

/* Body */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 5px;
    text-shadow: 0 2px 20px rgba(124,156,255,0.06);
}

header .subtitle {
    color: var(--muted-color);
    font-size: 1rem;
}

/* App container / cards */
.app-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

/* Upload area */
.upload-section {
    width: 100%;
}

.drop-area {
    border: 2px dashed rgba(255,255,255,0.06);
    background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
    border-radius: calc(var(--border-radius) - 2px);
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(4px);
}

.drop-area:hover {
    border-color: var(--primary-color);
    box-shadow: var(--soft-glow);
    transform: translateY(-3px);
}

.drop-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    filter: drop-shadow(0 6px 18px rgba(124,156,255,0.06));
}

.drop-area h3 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.drop-area p {
    color: var(--muted-color);
    margin-bottom: 20px;
}

.drop-area input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: calc(var(--border-radius) - 2px);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 6px 18px rgba(36,56,120,0.12);
}

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

/* semantic buttons */
.btn-upload { background-color: var(--primary-color); }
.btn-secondary { background-color: transparent; color: var(--muted-color); border: 1px solid var(--border-color); }
.btn-secondary:hover { color: var(--dark-color); border-color: rgba(124,156,255,0.2); background: rgba(124,156,255,0.03); }
.btn-download { background-color: var(--success-color); color: #042018; }
.btn-download:hover { filter: brightness(0.95); }
.btn-reset { background-color: var(--danger-color); color: white; }
.btn-reset:hover { transform: translateY(-2px); filter: brightness(0.98); }

/* preview info */
.preview-info {
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--muted-color);
}

.preview-info span { display: block; }

/* Editor layout */
.editor-section {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.image-preview-container {
    flex: 1;
    min-width: 300px;
}

/* preview wrapper (image canvas + placeholder) */
.preview-wrapper {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
    background-color: rgba(255,255,255,0.01);
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    box-shadow: 0 8px 24px rgba(2,6,23,0.55);
}

#imageCanvas {
    max-width: 100%;
    display: block;
    filter: saturate(1.03) contrast(0.98);
}

.placeholder {
    position: absolute;
    text-align: center;
    padding: 20px;
    color: var(--muted-color);
}

.placeholder i {
    font-size: 4rem;
    margin-bottom: 15px;
    color: rgba(255,255,255,0.08);
}

/* Controls */
.controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.watermark-controls {
    flex: 1;
    min-width: 300px;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    margin-bottom: 20px;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--muted-color);
    position: relative;
    transition: var(--transition);
    border-radius: 6px 6px 0 0;
}

.tab-btn:hover { color: var(--dark-color); background: rgba(255,255,255,0.01); }

.tab-btn.active {
    color: var(--dark-color);
    font-weight: 600;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(124,156,255,0.01));
    box-shadow: 0 6px 18px rgba(96,165,250,0.06);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 12px;
    right: 12px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Form groups */
.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input[type="text"],
.form-group input[type="color"],
.form-group input[type="range"],
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius) - 2px);
    font-family: inherit;
    transition: var(--transition);
    background: rgba(255,255,255,0.02);
    color: var(--dark-color);
    outline: none;
}

.form-group input[type="text"]::placeholder { color: rgba(230,238,248,0.5); }

.form-group input[type="text"]:focus,
.form-group select:focus {
    outline: none;
    border-color: rgba(124,156,255,0.28);
    box-shadow: 0 6px 22px rgba(96,165,250,0.06);
}

/* Range styles */
.form-group input[type="range"] {
    -webkit-appearance: none;
    height: 8px;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    padding: 0;
    margin-top: 10px;
}

.form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(124,156,255,0.18);
}

/* Checkbox group */
.checkbox-group {
    display: flex;
    gap: 15px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: normal;
    cursor: pointer;
    color: var(--muted-color);
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

/* Footer / social */
footer {
    text-align: center;
    padding: 20px 0;
    color: var(--muted-color);
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 10px;
}

.social-links a {
    color: var(--muted-color);
    font-size: 1.2rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover { color: var(--primary-color); transform: translateY(-2px); }

/* Notification */
.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: rgba(16,185,129,0.95); /* success-ish */
    color: #051014;
    padding: 14px 22px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(2,6,23,0.6);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .editor-section { flex-direction: column; }
    .image-preview-container,
    .watermark-controls { width: 100%; }
    header h1 { font-size: 2rem; }
}

/* Optional micro animations */
.btn:active { transform: translateY(0); }


/* native select styling für #textFont */
#textFont {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 100%;
  max-width: 420px;
  padding: 10px 40px 10px 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent), var(--surface-color);
  color: var(--dark-color);
  border: 1px solid var(--border-color);
  border-radius: calc(var(--border-radius) - 2px);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 6px 18px rgba(2,6,23,0.45);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='12' viewBox='0 0 18 12'%3E%3Cpath fill='%23ffffff' fill-opacity='0.8' d='M1 1l8 8 8-8'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px 12px;
}

/* focus/hover */
#textFont:hover { border-color: rgba(124,156,255,0.16); }
#textFont:focus {
  outline: none;
  border-color: rgba(124,156,255,0.28);
  box-shadow: 0 8px 28px rgba(96,165,250,0.08);
}

/* Hinweise: Optionen sind browserabhängig stilbar; vollständige Kontrolle nur mit Custom-Select. */



/* native select styling für #textFont */
#textPosition {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 100%;
  max-width: 420px;
  padding: 10px 40px 10px 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent), var(--surface-color);
  color: var(--dark-color);
  border: 1px solid var(--border-color);
  border-radius: calc(var(--border-radius) - 2px);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 6px 18px rgba(2,6,23,0.45);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='12' viewBox='0 0 18 12'%3E%3Cpath fill='%23ffffff' fill-opacity='0.8' d='M1 1l8 8 8-8'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px 12px;
}

/* focus/hover */
#textPosition:hover { border-color: rgba(124,156,255,0.16); }
#textPosition:focus {
  outline: none;
  border-color: rgba(124,156,255,0.28);
  box-shadow: 0 8px 28px rgba(96,165,250,0.08);
}

/* Hinweise: Optionen sind browserabhängig stilbar; vollständige Kontrolle nur mit Custom-Select. */



/* native select styling für #textFont */
#imagePosition {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 100%;
  max-width: 420px;
  padding: 10px 40px 10px 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent), var(--surface-color);
  color: var(--dark-color);
  border: 1px solid var(--border-color);
  border-radius: calc(var(--border-radius) - 2px);
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  box-shadow: 0 6px 18px rgba(2,6,23,0.45);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='12' viewBox='0 0 18 12'%3E%3Cpath fill='%23ffffff' fill-opacity='0.8' d='M1 1l8 8 8-8'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 18px 12px;
}

/* focus/hover */
#imagePosition:hover { border-color: rgba(124,156,255,0.16); }
#imagePosition:focus {
  outline: none;
  border-color: rgba(124,156,255,0.28);
  box-shadow: 0 8px 28px rgba(96,165,250,0.08);
}

/* Hinweise: Optionen sind browserabhängig stilbar; vollständige Kontrolle nur mit Custom-Select. */