/* ===== Dark Theme Variables ===== */
body.dark-mode {
    --primary-color: #14b8a6;
    --primary-color-rgb: 20, 184, 166;
    --primary-hover: #0d9488;
    --primary-light: #0f2f2b;

    --secondary-color: #cbd5e1;
    --secondary-hover: #e2e8f0;

    --success-color: #34d399;
    --warning-color: #f59e0b;
    --danger-color: #f87171;

    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;

    --border-color: #334155;
    --border-color-light: #475569;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.16);
    --shadow-md: 0 4px 8px -2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 16px -4px rgba(0, 0, 0, 0.24);
    --shadow-xl: 0 12px 24px -6px rgba(0, 0, 0, 0.3);
}

/* ===== Dark Mode Page-Specific Colors ===== */
/* Picker Mode in Dark Theme (Indigo) */
body.dark-mode.picker-mode {
    --primary-color: #a5b4fc;
    --primary-color-rgb: 165, 180, 252;
    --primary-hover: #818cf8;
    --primary-light: #312e81;
}

/* ===== Dark Mode Specific Overrides ===== */
body.dark-mode {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

body.dark-mode input[type="number"],
body.dark-mode input[type="range"] {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

body.dark-mode input[type="number"]:focus {
    border-color: var(--primary-color);
    animation: inputGlow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode .budget-slider {
    background: linear-gradient(to right, var(--primary-color) 0%, var(--primary-color) 50%, var(--bg-tertiary) 50%, var(--bg-tertiary) 100%);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

body.dark-mode .budget-slider:focus {
    animation: sliderThumbGlow 1.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

body.dark-mode .budget-slider::-webkit-slider-thumb {
    background: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light), var(--shadow-lg);
    border: 2px solid #1e293b;
}

body.dark-mode .budget-slider::-webkit-slider-thumb:hover {
    transform: scale(1.25) translateY(-4px);
    box-shadow: 0 0 0 5px var(--primary-light), 0 6px 20px rgba(20, 184, 166, 0.3);
}

body.dark-mode .budget-slider::-webkit-slider-thumb:active {
    transform: scale(1.05);
    box-shadow: 0 0 0 3px var(--primary-light), var(--shadow-md);
}

body.dark-mode .budget-slider::-moz-range-thumb:hover {
    transform: scale(1.25) translateY(-4px);
    box-shadow: 0 0 0 5px var(--primary-light), 0 6px 20px rgba(20, 184, 166, 0.3);
}

body.dark-mode .budget-slider::-moz-range-thumb:active {
    transform: scale(1.05);
    box-shadow: 0 0 0 3px var(--primary-light), var(--shadow-md);
}

body.dark-mode .option-button:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-color);
}

body.dark-mode .option-button.selected {
    background-color: var(--primary-color);
    color: var(--bg-primary);
}

body.dark-mode .build-card {
    background: var(--bg-secondary);
}

body.dark-mode .build-card.main-recommendation {
    background: var(--bg-secondary);
}

body.dark-mode .warning-message--critical {
    background-color: rgba(248, 113, 113, 0.2);
    border-color: #f87171;
}

body.dark-mode .warning-icon--critical {
    color: #f87171;
}

/* ===== Smooth Transitions ===== */
body {
    transition: background-color 0.5s ease, color 0.5s ease;
}

.header,
.header-controls,
.budget-section,
.build-card,
.modal-content,
.footer {
    transition: background-color 0.5s ease, color 0.5s ease, border-color 0.5s ease;
}

input[type="number"],
input[type="range"],
.option-button,
button {
    transition: all 0.3s ease;
}