* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    transition: background 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 100, 150, 0.1), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(100, 150, 255, 0.1), transparent 50%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
}


/* ========== LANDING PAGE ========== */

body.landing {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

.landing-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.landing-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 600px;
    padding: 40px;
    animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.landing-header {
    margin-bottom: 40px;
}

.landing-title {
    font-size: 72px;
    font-weight: 700;
    letter-spacing: 8px;
    margin-bottom: 10px;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.title-underline {
    width: 60px;
    height: 4px;
    background: rgba(255, 255, 255, 0.8);
    margin: 0 auto;
    border-radius: 2px;
}

.landing-description {
    margin-bottom: 50px;
    animation: fadeIn 1s ease 0.3s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.description-text {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.95);
}

.description-subtext {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
}

.landing-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    flex-wrap: wrap;
    animation: fadeIn 1s ease 0.6s both;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.feature-icon {
    font-size: 24px;
}

.feature-label {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}

.landing-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 50px;
    font-size: 16px;
    font-weight: 600;
    color: #667eea;
    background: white;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    animation: fadeIn 1s ease 0.9s both;
}

.landing-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
}

.landing-button:active {
    transform: translateY(-1px);
}

.arrow {
    transition: transform 0.3s ease;
}

.landing-button:hover .arrow {
    transform: translateX(5px);
}

.landing-divider {
    width: 60px;
    height: 1px;
    background: rgba(255, 255, 255, 0.3);
    margin: 50px auto;
}

.landing-footer {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
    letter-spacing: 1px;
}

.landing-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    backdrop-filter: blur(50px);
}

.decoration-1 {
    width: 300px;
    height: 300px;
    background: white;
    top: -150px;
    right: -150px;
    animation: float 6s ease-in-out infinite;
}

.decoration-2 {
    width: 200px;
    height: 200px;
    background: white;
    bottom: -100px;
    left: -100px;
    animation: float 8s ease-in-out infinite 1s;
}

.decoration-3 {
    width: 250px;
    height: 250px;
    background: white;
    bottom: -125px;
    right: 10%;
    animation: float 7s ease-in-out infinite 0.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(30px);
    }
}

@media (max-width: 768px) {
    .landing-title {
        font-size: 48px;
        letter-spacing: 4px;
    }
    
    .description-text {
        font-size: 20px;
    }
    
    .landing-features {
        gap: 15px;
        flex-direction: column;
    }
    
    .feature-item {
        width: 100%;
    }
}

/* ========== THEME BACKGROUNDS ========== */

/* Classic Theme */
body.classic {
   background: linear-gradient(135deg, #ff758c 0%, #ff7eb3 100%);
}

/* Gen-Z Theme */
body.genz {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* ========== APP LAYOUT ========== */

.app-container {
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: minmax(320px, 450px) 1fr;
    gap: 60px;
    max-width: 1400px;
    margin: 80px auto;
    padding: 0 40px;
    padding-bottom: 100px;
    min-height: 100vh;
}

.sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.content-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 850px;
}

/* ========== CARDS ========== */

.card {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.2);
    transform: translateY(-4px);
}

.card-header {
    margin-bottom: 20px;
}

.card-header h2,
.card-header h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 5px;
}

.card-subtitle {
    font-size: 13px;
    opacity: 0.8;
    font-weight: 400;
}

/* ========== MAIN CARD ========== */

.main-card {
    padding: 35px;
}

.main-card .card-header h2 {
    font-size: 28px;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========== INPUT FIELDS ========== */

.input-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 25px;
}

.input-wrapper {
    position: relative;
}

.input-field {
    width: 100%;
    padding: 14px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    outline: none;
}

.input-field::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.input-field:focus {
    border-bottom-color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.08);
    padding: 14px 10px;
}

.input-underline {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: white;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.input-field:focus ~ .input-underline {
    transform: scaleX(1);
}

/* ========== THEME SELECTOR ========== */

.theme-selector {
    margin-top: 30px;
    margin-bottom: 5px;
}

.theme-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-bottom: 12px;
}

.theme-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.theme-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.theme-btn.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: inset 0 4px 12px rgba(0, 0, 0, 0.1);
}

.theme-icon {
    font-size: 16px;
}

/* ========== BUTTONS ========== */

.btn-primary {
    width: 100%;
    padding: 14px 20px;
    margin-top: 20px;
    background: white;
    color: #667eea;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(255, 255, 255, 0.3);
}

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

.btn-icon {
    font-size: 16px;
}

.btn-icon-circle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-icon-circle:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1) translateY(-2px);
}

.btn-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.btn-close:hover {
    color: rgba(255, 255, 255, 0.7);
    transform: rotate(90deg);
}

/* ========== BOTTOM CONTROLS ========== */

.bottom-controls {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

/* ========== RESULT DISPLAY ========== */

.result-container {
    margin-top: 30px;
    animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.result-card {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
}

.result-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.7;
    margin-bottom: 10px;
    font-weight: 500;
}

.result-text {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-verse {
    font-size: 14px;
    opacity: 0.85;
    font-style: italic;
    line-height: 1.6;
}

/* ========== HISTORY DRAWER ========== */

.history-drawer {
    position: fixed;
    right: -350px;
    top: 0;
    width: 320px;
    max-width: 90vw;
    height: 100vh;
    background: rgba(20, 20, 30, 0.98);
    backdrop-filter: blur(10px);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 30px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.history-drawer.show {
    right: 0;
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.drawer-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.drawer-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.2), transparent);
    margin-bottom: 20px;
}

.history-list {
    list-style: none;
    flex: 1;
    overflow-y: auto;
    padding-right: 10px;
}

.history-list::-webkit-scrollbar {
    width: 6px;
}

.history-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.history-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}

.history-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.history-list li {
    padding: 12px;
    border-radius: 10px;
    font-size: 13px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    word-break: break-word;
}

.history-list li:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateX(4px);
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.4s ease;
    pointer-events: none;
    z-index: 999;
}

.history-drawer.show ~ .overlay {
    background: rgba(0, 0, 0, 0.4);
    pointer-events: auto;
}

/* ========== MUSIC BUTTON ========== */



/* ========== INFO SECTION ========== */

.info-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding-bottom: 50px;
}

.info-card {
    padding: 35px;
}

.info-card .card-header h3 {
    color: white;
}

.info-card p,
.info-card li {
    opacity: 0.9;
    line-height: 1.7;
    font-size: 15px;
}

.steps-list {
    padding-left: 0;
    list-style: none;
}

.steps-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.steps-list li:last-child {
    border-bottom: none;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    min-width: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

/* ========== MEANING GRID ========== */

.meaning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.meaning-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
    align-items: flex-start;
}

.meaning-item:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-4px);
}

.meaning-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    min-width: 45px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.meaning-content strong {
    display: block;
    margin-bottom: 6px;
    font-size: 15px;
}

.meaning-content p {
    font-size: 13px;
    opacity: 0.8;
    margin: 0;
}

.meaning-item {
    animation: fadeIn 0.4s ease;
}


/* ========== RESPONSIVE DESIGN ========== */

@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 20px;
    }

    .sidebar {
        position: static;
    }

    .content-section {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .app-container {
        margin-top: 40px;
        padding-bottom: 150px;
    }

    .card {
        padding: 25px;
        border-radius: 16px;
    }

    .main-card {
        padding: 25px;
    }

    .card-header h2,
    .card-header h3 {
        font-size: 20px;
    }

    .result-text {
        font-size: 36px;
    }

    .theme-buttons {
        grid-template-columns: 1fr;
    }

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

    .history-drawer {
        width: 100%;
        max-width: 100%;
    }

    .bottom-controls {
        justify-content: center;
    }

    .steps-list li {
        gap: 12px;
    }

    .step-number {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .app-container {
        padding: 0 16px;
    }

    .card {
        padding: 20px;
    }

    .card-header h2,
    .card-header h3 {
        font-size: 18px;
    }

    .card-subtitle {
        font-size: 12px;
    }

    .result-text {
        font-size: 32px;
    }

    .result-verse {
        font-size: 13px;
    }

    .btn-primary {
        padding: 12px 16px;
        font-size: 14px;
    }

    .input-field {
        padding: 12px 0;
        font-size: 14px;
    }

    .theme-label {
        font-size: 12px;
    }

    .theme-btn {
        padding: 10px 12px;
        font-size: 12px;
    }

    .info-card p,
    .info-card li {
        font-size: 14px;
    }

    .meaning-icon {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .meaning-content strong {
        font-size: 14px;
    }

    .meaning-content p {
        font-size: 12px;
    }

    .drawer-header h3 {
        font-size: 16px;
    }

    .history-list li {
        font-size: 12px;
        padding: 10px;
    }
}

/* ========== FOOTER ========== */

.app-footer {
    width: 100%;
    padding: 30px 20px;
    margin-top: 60px;
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content p {
    font-size: 14px;
    margin-bottom: 10px;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 13px;
    opacity: 0.7;
    transition: 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    transform: translateY(-2px);
}