/* ===== LIGHT MODE (DEFAULT) ===== */
:root {
    --bg-color: #f4f6fb;
    --text-color: #1e293b;
    --card-bg: #ffffff;
    --card-text: #1e293b;
    --hero-bg: linear-gradient(135deg, #3f51b5, #2196f3);
    --footer-bg: #111827;
    --footer-text: #9ca3af;
    --border-color: #e2e8f0;
    --accent-btn: #2196f3;
    --accent-hover: #1976d2;
    --secondary-btn: #f1f5f9;
    --secondary-text: #475569;
    --success-btn: #10b981;
    --success-hover: #059669;
}

/* ===== DARK MODE ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f1115;
        --text-color: #eaeaea;
        --card-bg: #1a1e26;
        --card-text: #eaeaea;
        --hero-bg: linear-gradient(135deg, #1a237e, #0d47a1);
        --footer-bg: #000000;
        --footer-text: rgba(255, 255, 255, 0.7);
        --border-color: #2e3545;
        --accent-btn: #2196f3;
        --accent-hover: #1e88e5;
        --secondary-btn: #2a303c;
        --secondary-text: #cbd5e1;
    }
}

/* ===== RESET & BASE ===== */
html,
body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    word-wrap: break-word;
}

body {
    background: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== NAVBAR ===== */
.navbar {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1100px;
    margin: auto;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
    letter-spacing: -0.5px;
}

.menu-btn {
    width: 28px;
    height: 22px;
    position: relative;
    cursor: pointer;
}

.menu-btn span {
    position: absolute;
    height: 3px;
    width: 100%;
    background: #fff;
    border-radius: 2px;
    transition: 0.3s;
}

.menu-btn span:nth-child(1) {
    top: 0;
}

.menu-btn span:nth-child(2) {
    top: 9px;
}

.menu-btn span:nth-child(3) {
    top: 18px;
}

.menu-btn.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 9px;
}

.menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: 9px;
}

.nav-menu {
    display: none;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.95);
}

.nav-menu a {
    padding: 14px 20px;
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media(min-width: 768px) {
    .menu-btn {
        display: none;
    }

    .nav-menu {
        display: flex !important;
        flex-direction: row;
        background: none;
        justify-content: center;
    }

    .nav-menu a {
        border: none;
        padding: 0 14px;
    }
}

/* ===== HERO ===== */
.hero {
    background: var(--hero-bg);
    color: #fff;
    padding: 45px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 30px;
    margin-bottom: 8px;
}

.hero p {
    font-size: 14px;
    opacity: 0.92;
}

/* ===== MAIN SECTION ===== */
.section {
    padding: 30px 15px;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
}

.tool-card {
    background: var(--card-bg);
    color: var(--card-text);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

/* DROP ZONE */
.drop-zone {
    border: 2px dashed var(--accent-btn);
    border-radius: 12px;
    padding: 35px 20px;
    text-align: center;
    background: rgba(0, 0, 0, 0.02);
    cursor: pointer;
    transition: background 0.3s ease;
}

.drop-zone:hover {
    background: rgba(33, 150, 243, 0.05);
}

.drop-zone i {
    font-size: 42px;
    color: var(--accent-btn);
    margin-bottom: 10px;
}

.drop-zone p {
    font-size: 14px;
    margin-bottom: 6px;
    font-weight: bold;
}

.drop-zone span {
    font-size: 12px;
    opacity: 0.7;
}

#fileInput {
    display: none;
}

/* CROPPER / PREVIEW AREA */
.preview-box {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    background: rgba(0, 0, 0, 0.02);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    width: 100%;
}

.cropper-container-wrapper {
    max-width: 100%;
    max-height: 380px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background: #000;
    border-radius: 8px;
}

.cropper-container-wrapper img {
    max-width: 100%;
    display: block;
}

.crop-toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.crop-btn-sm {
    padding: 6px 12px;
    background: var(--secondary-btn);
    color: var(--secondary-text);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.crop-btn-sm:hover {
    background: var(--border-color);
}

.file-info {
    font-size: 13px;
    text-align: center;
    opacity: 0.85;
}

/* RESIZED OUTPUT PREVIEW AREA */
.output-preview-box {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    background: rgba(16, 185, 129, 0.05);
    padding: 20px;
    border-radius: 10px;
    border: 1.5px solid var(--success-btn);
}

.output-preview-box h3 {
    font-size: 15px;
    color: var(--success-btn);
    display: flex;
    align-items: center;
    gap: 6px;
}

.output-preview-container {
    max-width: 100%;
    max-height: 280px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.output-preview-container img {
    max-width: 100%;
    max-height: 260px;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    object-fit: contain;
}

.output-info {
    font-size: 13px;
    font-weight: bold;
    color: var(--card-text);
    text-align: center;
}

/* CONTROLS DASHBOARD */
.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    background: rgba(0, 0, 0, 0.03);
    padding: 16px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group.full-width {
    grid-column: 1 / -1;
}

.input-group label {
    font-size: 13px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 6px;
}

.control-select,
.control-input {
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--card-text);
    font-size: 13px;
    outline: none;
    width: 100%;
}

/* ACTION BUTTONS */
.action-group {
    display: flex;
    gap: 10px;
    width: 100%;
}

.btn {
    flex: 1;
    padding: 12px 10px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent-btn);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-success {
    background: var(--success-btn);
    color: #fff;
}

.btn-success:hover {
    background: var(--success-hover);
}

.btn-secondary {
    background: var(--secondary-btn);
    color: var(--secondary-text);
    border: 1px solid var(--border-color);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* CONTENT CARD & FAQ */
.content-card {
    background: var(--card-bg);
    color: var(--card-text);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 30px auto 0 auto;
    line-height: 1.6;
}

.section-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 16px;
    color: var(--accent-btn);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.steps-list {
    margin-left: 20px;
    margin-bottom: 20px;
}

.steps-list li {
    margin-bottom: 10px;
    font-size: 14px;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 15px;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.02);
}

.faq-question {
    font-size: 15px;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.faq-question i {
    color: var(--accent-btn);
}

.faq-answer {
    font-size: 14px;
    color: var(--secondary-text);
    line-height: 1.5;
}

/* FOOTER */
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    font-size: 15px;
    width: 100%;
}

footer a {
    color: var(--footer-text);
    text-decoration: none;
    margin: 0 6px;
}

/* MOBILE RESPONSIVE FIXES FOR DIMENSION INPUTS */
@media (max-width: 600px) {
    .tool-card {
        padding: 14px;
        border-radius: 12px;
    }

    .controls-grid {
        grid-template-columns: 1fr 1fr;
        /* Width & Height ek hi row me */
        gap: 8px;
        padding: 10px;
    }

    .input-group.full-width {
        grid-column: 1 / -1;
    }

    .control-input,
    .control-select {
        padding: 8px 8px;
        font-size: 12px;
    }

    .input-group label {
        font-size: 11px;
        gap: 4px;
    }

    .action-group {
        flex-direction: column;
    }
}