/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(20, 20, 30, 0.7);
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    --accent-primary: #7c3aed;
    --accent-secondary: #a855f7;
    --accent-gradient: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #c084fc 100%);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --success: #22c55e;
    --font-english: 'Outfit', sans-serif;
    --font-urdu: 'Noto Nastaliq Urdu', serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-english);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ===== Background Effects ===== */
.background-effects {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.4) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(192, 132, 252, 0.3) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -30px) scale(1.05);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(-30px, -10px) scale(1.02);
    }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1rem 1.5rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

.nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    transition: color 0.2s ease;
}

.brand-link:hover {
    color: var(--accent-secondary);
}

.brand-icon {
    font-size: 1.5rem;
    color: var(--success);
}

.brand-name {
    font-size: 1.1rem;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

.tool-description {
    font-family: var(--font-urdu);
    color: var(--text-muted);
    margin-top: 0.75rem;
    font-size: 0.95rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    flex-direction: row-reverse;
}

.logo-icon {
    font-size: 3rem;
    animation: spin 4s ease-in-out infinite;
}

@keyframes spin {

    0%,
    100% {
        transform: rotate(0deg);
    }

    50% {
        transform: rotate(180deg);
    }
}

.logo-text h1 {
    font-size: 2rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-family: var(--font-urdu);
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ===== Toggle ===== */
.toggle-container {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.toggle-btn {
    position: relative;
    display: flex;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 0.5rem;
    cursor: pointer;
    overflow: hidden;
}

.toggle-option {
    position: relative;
    z-index: 2;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.3s ease;
    white-space: nowrap;
}

.toggle-option.active {
    color: var(--text-primary);
}

.toggle-slider {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    width: calc(50% - 0.5rem);
    height: calc(100% - 1rem);
    background: var(--accent-gradient);
    border-radius: 50px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.toggle-btn[data-direction="inpage-to-unicode"] .toggle-slider {
    transform: translateX(100%);
}

/* ===== Main Converter ===== */
.converter-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.text-area-wrapper {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: stretch;
}

/* ===== Text Cards ===== */
.text-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.text-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
    box-shadow: var(--shadow-glow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-direction: row-reverse;
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.icon-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    background: var(--accent-primary);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.header-buttons {
    display: flex;
    gap: 0.5rem;
}

.download-btn {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

.download-btn:hover {
    background: #16a34a;
    border-color: #16a34a;
}

textarea {
    flex: 1;
    min-height: 250px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-family: var(--font-urdu);
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text-primary);
    resize: vertical;
    direction: rtl;
    text-align: right;
    transition: border-color 0.2s ease;
}

textarea::placeholder {
    color: var(--text-muted);
    font-family: var(--font-urdu);
}

textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.char-count {
    text-align: left;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
}

/* ===== Swap Button ===== */
.swap-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: center;
}

.swap-btn:hover {
    background: var(--accent-gradient);
    color: var(--text-primary);
    transform: rotate(180deg);
    box-shadow: var(--shadow-glow);
}

/* ===== Convert Button ===== */
.convert-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 3rem;
    background: var(--accent-gradient);
    border: none;
    border-radius: 50px;
    font-family: var(--font-english);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: center;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
}

.convert-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
}

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

.convert-btn .btn-urdu {
    font-family: var(--font-urdu);
    opacity: 0.9;
}

.convert-btn svg {
    transform: rotate(90deg);
}

/* ===== Instructions ===== */
.instructions {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 1.5rem;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.instructions h3 {
    font-family: var(--font-urdu);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--accent-secondary);
}

.instructions ol {
    font-family: var(--font-urdu);
    color: var(--text-secondary);
    padding-right: 1.5rem;
    line-height: 2;
    font-size: 0.95rem;
}

.instructions ol li {
    margin-bottom: 0.5rem;
}

.instructions strong {
    color: var(--text-primary);
}

/* ===== Footer ===== */
.footer {
    margin-top: 3rem;
    padding: 2rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.footer-brand {
    text-align: right;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.2rem;
}

.footer-logo:hover {
    color: var(--accent-secondary);
}

.footer-logo .brand-icon {
    font-size: 1.3rem;
    color: var(--success);
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.footer-bottom a {
    color: var(--accent-secondary);
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

.credits {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* ===== Toast Notification ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--success);
    border-radius: 50px;
    color: white;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
}

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

.toast-icon {
    font-size: 1.1rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 900px) {
    .text-area-wrapper {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto 1fr;
    }

    .swap-btn {
        transform: rotate(90deg);
    }

    .swap-btn:hover {
        transform: rotate(270deg);
    }

    .input-card {
        order: 1;
    }

    .swap-btn {
        order: 2;
    }

    .output-card {
        order: 3;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    .header {
        padding: 1rem;
    }

    .logo-text h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .toggle-option {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }

    textarea {
        min-height: 180px;
        font-size: 1rem;
    }

    .convert-btn {
        width: 100%;
        padding: 1rem;
    }
}

/* ===== Animations ===== */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.loading {
    animation: pulse 1s ease-in-out infinite;
}