/* ============================================
   Reachy Client Form - Styles
   Dark/Light Mode | RTL | Modern Design
   ============================================ */

/* ── CSS Variables (Dark - Default) ── */
[data-theme="dark"] {
    --primary: #4F00FF;
    --primary-light: #7B3AFF;
    --primary-dark: #3A00CC;
    --primary-glow: rgba(79, 0, 255, 0.4);
    --primary-subtle: rgba(79, 0, 255, 0.08);
    --primary-border: rgba(79, 0, 255, 0.2);
    --bg-main: #06060E;
    --bg-card: rgba(255, 255, 255, 0.025);
    --bg-card-hover: rgba(255, 255, 255, 0.05);
    --bg-input: rgba(255, 255, 255, 0.04);
    --bg-input-focus: rgba(255, 255, 255, 0.07);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-input: rgba(255, 255, 255, 0.1);
    --border-input-focus: var(--primary);
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-muted: rgba(255, 255, 255, 0.35);
    --text-placeholder: rgba(255, 255, 255, 0.25);
    --success: #00D97E;
    --success-glow: rgba(0, 217, 126, 0.3);
    --error: #FF4757;
    --shadow-card: 0 4px 60px rgba(0, 0, 0, 0.3), 0 0 100px rgba(79, 0, 255, 0.05);
    --grid-color: rgba(255, 255, 255, 0.015);
    --noise-opacity: 0.03;
    --orb-opacity: 0.35;
    --particle-hue-base: 260;
    --particle-line: rgba(79, 0, 255, 0.08);
    --ghost-hover-bg: rgba(255, 255, 255, 0.03);
    --input-hover-border: rgba(255, 255, 255, 0.15);
    --input-hover-bg: rgba(255, 255, 255, 0.05);
    --optional-bg: rgba(255, 255, 255, 0.04);
    --ripple-color: rgba(255, 255, 255, 0.15);
    --logo-filter: drop-shadow(0 0 40px rgba(79, 0, 255, 0.3));
    --title-gradient: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
}

/* ── CSS Variables (Light) ── */
[data-theme="light"] {
    --primary: #4F00FF;
    --primary-light: #7B3AFF;
    --primary-dark: #3A00CC;
    --primary-glow: rgba(79, 0, 255, 0.2);
    --primary-subtle: rgba(79, 0, 255, 0.06);
    --primary-border: rgba(79, 0, 255, 0.15);
    --bg-main: #F5F3FF;
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-card-hover: rgba(255, 255, 255, 0.9);
    --bg-input: rgba(255, 255, 255, 0.8);
    --bg-input-focus: #FFFFFF;
    --border-subtle: rgba(79, 0, 255, 0.08);
    --border-input: rgba(0, 0, 0, 0.1);
    --border-input-focus: var(--primary);
    --text-primary: #1A1A2E;
    --text-secondary: #4A4A6A;
    --text-muted: #8888A8;
    --text-placeholder: #B0B0C8;
    --success: #00B368;
    --success-glow: rgba(0, 179, 104, 0.2);
    --error: #E8364E;
    --shadow-card: 0 4px 40px rgba(79, 0, 255, 0.06), 0 1px 3px rgba(0, 0, 0, 0.05);
    --grid-color: rgba(79, 0, 255, 0.03);
    --noise-opacity: 0.015;
    --orb-opacity: 0.15;
    --particle-hue-base: 260;
    --particle-line: rgba(79, 0, 255, 0.05);
    --ghost-hover-bg: rgba(79, 0, 255, 0.04);
    --input-hover-border: rgba(0, 0, 0, 0.15);
    --input-hover-bg: rgba(255, 255, 255, 0.9);
    --optional-bg: rgba(79, 0, 255, 0.04);
    --ripple-color: rgba(79, 0, 255, 0.1);
    --logo-filter: drop-shadow(0 0 30px rgba(79, 0, 255, 0.15));
    --title-gradient: linear-gradient(135deg, #1A1A2E 0%, #4A4A6A 100%);
}

/* ── Transitions ── */
:root {
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
    direction: rtl;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.4s ease, color 0.4s ease;
}

::selection {
    background: var(--primary);
    color: white;
}

::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--primary-border);
    border-radius: 3px;
}

/* ── Theme Toggle ── */
.theme-toggle {
    position: fixed;
    top: 1.2rem;
    left: 1.2rem;
    z-index: 200;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1.5px solid var(--border-subtle);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.theme-toggle:hover {
    border-color: var(--primary-border);
    background: var(--bg-card-hover);
    color: var(--primary-light);
    transform: scale(1.08);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    width: 20px;
    height: 20px;
    transition: all 0.3s ease;
    position: absolute;
}

/* Dark mode: show sun icon (to switch to light) */
[data-theme="dark"] .icon-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}
[data-theme="dark"] .icon-moon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

/* Light mode: show moon icon (to switch to dark) */
[data-theme="light"] .icon-sun {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}
[data-theme="light"] .icon-moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* ── Background Elements ── */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    pointer-events: none;
    transition: background-image 0.4s ease;
}

.bg-noise {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: var(--noise-opacity);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    transition: opacity 0.4s ease;
}

.bg-orbs {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    transition: opacity 0.4s ease;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: var(--orb-opacity);
    transition: opacity 0.4s ease;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: floatOrb1 20s ease-in-out infinite;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #7B3AFF 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation: floatOrb2 25s ease-in-out infinite;
}

.orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #2600A0 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: floatOrb3 18s ease-in-out infinite;
}

@keyframes floatOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-80px, 60px) scale(1.1); }
    66% { transform: translate(40px, -40px) scale(0.9); }
}

@keyframes floatOrb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(60px, -80px) scale(1.15); }
    66% { transform: translate(-50px, 50px) scale(0.85); }
}

@keyframes floatOrb3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.3); }
}

#particles-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

/* ── Progress Bar ── */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--border-subtle);
    z-index: 100;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.progress-container.visible {
    opacity: 1;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 0 3px 3px 0;
    width: 0%;
    transition: width var(--transition-slow);
    box-shadow: 0 0 20px var(--primary-glow), 0 0 5px var(--primary-glow);
}

/* ── Form Wrapper ── */
.form-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* ── Steps ── */
.step {
    position: absolute;
    width: 100%;
    max-width: 680px;
    padding: 0 1rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(40px);
    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow),
        visibility 0s linear 0.6s;
    pointer-events: none;
}

.step.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
        opacity var(--transition-slow),
        transform var(--transition-slow),
        visibility 0s;
    pointer-events: auto;
}

.step.exit-up {
    opacity: 0;
    transform: translateY(-40px);
}

.step.exit-down {
    opacity: 0;
    transform: translateY(40px);
}

/* ── Welcome Screen ── */
.welcome-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.logo-container {
    width: 180px;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: logoEntrance 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    opacity: 0;
}

@keyframes logoEntrance {
    0% {
        opacity: 0;
        transform: scale(0.5) translateY(30px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: var(--logo-filter);
    transition: filter 0.4s ease;
}

.welcome-title {
    font-size: 2.8rem;
    font-weight: 800;
    background: var(--title-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

.welcome-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 420px;
    line-height: 1.8;
    animation: fadeInUp 0.8s 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

.welcome-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    animation: fadeInUp 0.8s 0.9s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

.btn-start {
    animation: fadeInUp 0.8s 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
    font-size: 1.15rem;
    padding: 1rem 3rem;
    margin-top: 0.5rem;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Step Header ── */
.step-header {
    margin-bottom: 2.5rem;
}

.step-counter {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    background: var(--primary-subtle);
    padding: 0.35rem 1rem;
    border-radius: 100px;
    margin-bottom: 1rem;
    border: 1px solid var(--primary-border);
}

.step-counter-sep {
    color: var(--text-muted);
    font-weight: 400;
}

.step-title {
    font-size: 1.65rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 0.5rem;
}

.step-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ── Step Body ── */
.step-body {
    margin-bottom: 2.5rem;
}

/* ── Input Fields ── */
.input-group {
    margin-bottom: 1.25rem;
}

.input-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
}

.optional-tag {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-muted);
    background: var(--optional-bg);
    padding: 0.15rem 0.6rem;
    border-radius: 100px;
}

.input-field {
    width: 100%;
    padding: 0.9rem 1.1rem;
    background: var(--bg-input);
    border: 1.5px solid var(--border-input);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'Cairo', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: all var(--transition-fast);
}

.input-field::placeholder {
    color: var(--text-placeholder);
}

.input-field:hover {
    border-color: var(--input-hover-border);
    background: var(--input-hover-bg);
}

.input-field:focus {
    border-color: var(--primary);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 3px rgba(79, 0, 255, 0.1), 0 0 20px rgba(79, 0, 255, 0.05);
}

.input-field.error {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.1);
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.textarea-field {
    resize: vertical;
    min-height: 90px;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

/* ── Option Cards (Grid) ── */
.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.8rem;
}

.option-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 1.5rem 1rem;
    background: var(--bg-card);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    position: relative;
    overflow: hidden;
}

.option-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, var(--primary-glow), transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.option-card:hover {
    border-color: var(--primary-border);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.option-card.selected {
    border-color: var(--primary);
    background: var(--primary-subtle);
    transform: translateY(-2px);
}

.option-card.selected::before {
    opacity: 0.15;
}

.option-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-light);
    transition: transform var(--transition-spring), color var(--transition-fast);
}

.option-icon svg {
    width: 100%;
    height: 100%;
}

.option-card:hover .option-icon,
.option-card.selected .option-icon {
    transform: scale(1.15);
    color: var(--primary);
}

.option-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    transition: color var(--transition-fast);
    position: relative;
    z-index: 1;
}

.option-card.selected .option-text {
    color: var(--text-primary);
}

/* ── Option Rows (List) ── */
.options-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.option-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    background: var(--bg-card);
    border: 1.5px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.option-row:hover {
    border-color: var(--primary-border);
    background: var(--bg-card-hover);
}

.option-row.selected {
    border-color: var(--primary);
    background: var(--primary-subtle);
}

.option-row span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.option-row.selected span {
    color: var(--text-primary);
}

/* Radio button style */
.option-radio {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border-radius: 50%;
    border: 2px solid var(--border-input);
    transition: all var(--transition-fast);
    position: relative;
    flex-shrink: 0;
}

.option-radio::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition-spring);
}

.option-row.selected .option-radio {
    border-color: var(--primary);
}

.option-row.selected .option-radio::after {
    transform: translate(-50%, -50%) scale(1);
}

/* Checkbox style */
.option-checkbox {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border-radius: 5px;
    border: 2px solid var(--border-input);
    transition: all var(--transition-fast);
    position: relative;
    flex-shrink: 0;
}

.option-checkbox::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 11px;
    border: solid white;
    border-width: 0 2.5px 2.5px 0;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg) scale(0);
    transition: transform var(--transition-spring);
}

.option-row.selected .option-checkbox {
    border-color: var(--primary);
    background: var(--primary);
}

.option-row.selected .option-checkbox::after {
    transform: translate(-50%, -50%) rotate(45deg) scale(1);
}

/* ── Conditional Fields ── */
.conditional-field {
    overflow: hidden;
    transition: all var(--transition-medium);
}

.conditional-field.visible {
    display: block !important;
    animation: slideDown 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes slideDown {
    0% {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        max-height: 200px;
        transform: translateY(0);
    }
}

/* ── Step Footer ── */
.step-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 2rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(79, 0, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(79, 0, 255, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,255,255,0.1));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    padding: 0.85rem 1.2rem;
}

.btn-ghost:hover {
    color: var(--text-secondary);
    background: var(--ghost-hover-bg);
}

.btn-ghost svg {
    width: 16px;
    height: 16px;
}

/* Submit button */
.btn-submit {
    min-width: 160px;
}

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

.btn-loader {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* ── Thank You Screen ── */
.thankyou-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.checkmark-container {
    width: 100px;
    height: 100px;
    margin-bottom: 1rem;
}

.checkmark-svg {
    width: 100%;
    height: 100%;
}

.checkmark-circle {
    stroke: var(--success);
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    animation: drawCircle 0.6s 0.2s ease forwards;
}

.checkmark-check {
    stroke: var(--success);
    stroke-dasharray: 60;
    stroke-dashoffset: 60;
    animation: drawCheck 0.4s 0.7s ease forwards;
}

@keyframes drawCircle {
    to { stroke-dashoffset: 0; }
}

@keyframes drawCheck {
    to { stroke-dashoffset: 0; }
}

.thankyou-title {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--success) 0%, #00FF88 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .thankyou-title {
    background: linear-gradient(135deg, #00994D 0%, var(--success) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.thankyou-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 400px;
    line-height: 1.8;
}

.thankyou-info {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

.info-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    color: var(--primary-light);
}

.info-icon svg {
    width: 100%;
    height: 100%;
}

/* ── Error Messages ── */
.error-message {
    display: none;
    font-size: 0.82rem;
    color: var(--error);
    margin-top: 0.4rem;
    animation: fadeInUp 0.3s ease;
}

.error-message.visible {
    display: block;
}

/* ── Click Feedback ── */
.option-card:active {
    transform: scale(0.97);
}

.option-row:active {
    transform: scale(0.98);
}

/* ── Toast Notification ── */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 1rem 2rem;
    background: var(--error);
    color: white;
    border-radius: var(--radius-sm);
    font-family: 'Cairo', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition-medium);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.toast.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--success);
}

/* ── Stagger Animation for children (one-time via JS class) ── */
.step.animating .step-header {
    animation: fadeInUp 0.5s 0.1s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.step.animating .step-body {
    animation: fadeInUp 0.5s 0.2s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.step.animating .step-footer {
    animation: fadeInUp 0.5s 0.3s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.step.animating .option-card,
.step.animating .option-row {
    opacity: 0;
    animation: fadeInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.step.animating .option-card:nth-child(1),
.step.animating .option-row:nth-child(1) { animation-delay: 0.2s; }
.step.animating .option-card:nth-child(2),
.step.animating .option-row:nth-child(2) { animation-delay: 0.25s; }
.step.animating .option-card:nth-child(3),
.step.animating .option-row:nth-child(3) { animation-delay: 0.3s; }
.step.animating .option-card:nth-child(4),
.step.animating .option-row:nth-child(4) { animation-delay: 0.35s; }
.step.animating .option-card:nth-child(5),
.step.animating .option-row:nth-child(5) { animation-delay: 0.4s; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .form-wrapper {
        padding: 1.5rem 1.5rem;
    }

    .step {
        padding: 0 0.75rem;
    }

    .welcome-title {
        font-size: 2rem;
    }

    .welcome-subtitle {
        font-size: 1rem;
    }

    .step-title {
        font-size: 1.35rem;
    }

    .input-row {
        grid-template-columns: 1fr;
    }

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

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

    .logo-container {
        width: 130px;
        height: 130px;
    }

    .btn-start {
        padding: 0.9rem 2.5rem;
    }

    .step-footer {
        flex-direction: row;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    .theme-toggle {
        top: 1rem;
        left: 1rem;
        width: 40px;
        height: 40px;
    }

    .theme-icon {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .form-wrapper {
        padding: 1.25rem 1.25rem;
    }

    .step {
        padding: 0 0.5rem;
    }

    .options-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.6rem;
    }

    .option-card {
        padding: 1.2rem 0.8rem;
    }

    .welcome-title {
        font-size: 1.7rem;
    }

    .step-title {
        font-size: 1.2rem;
    }

    .btn-ghost span {
        display: none;
    }
}

/* ── Keyboard Navigation ── */
.option-card:focus-visible,
.option-row:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.input-field:focus-visible {
    outline: none;
}

/* ── Accessibility - Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}