/* ===============================================
   CSS Variables & Root Styles
   =============================================== */
:root {
    --primary: #22b6c3;
    --primary-hover: #1da3af;
    --primary-light: rgba(34, 182, 195, 0.1);
    --modal-primary: #3580e9;
    --modal-primary-hover: #2970d9;

    --bg-light: #ffffff;
    --bg-gray: #f8f9fa;
    --bg-dark: #1f292e;

    --text-dark: #121717;
    --text-gray: #658386;
    --text-light: #ffffff;

    --border-light: #f0f4f4;
    --border-gray: #dce0e5;

    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15);

    --font-family: 'Epilogue', sans-serif;
    --transition: all 0.3s ease;
}

/* ===============================================
   Reset & Base Styles
   =============================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===============================================
   Utility Classes
   =============================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===============================================
   Button Styles
   =============================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--text-light);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: scale(1.02);
}

.btn-secondary {
    background-color: #f1f3f4;
    color: #4a5568;
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.btn-outline {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.btn-text {
    background: transparent;
    color: var(--text-dark);
    font-weight: 600;
}

.btn-text:hover {
    background-color: #f7fafc;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ===============================================
   Header Styles
   =============================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    color: var(--primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo-text-light {
    font-weight: 300;
    color: #6b7280;
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 600;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 0.5rem;
}

.mobile-menu-btn:hover {
    background-color: #f3f4f6;
}

.nav-mobile {
    display: none;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 1.5rem 1.5rem;
    border-top: 1px solid var(--border-light);
}

.nav-mobile.active {
    display: flex;
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }

    .mobile-menu-btn {
        display: none;
    }

    .nav-mobile {
        display: none !important;
    }
}

/* ===============================================
   Hero Section
   =============================================== */
.hero-section {
    padding: 2rem 1.5rem;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 1.5rem;
    min-height: 450px;
    padding: 2rem;
    border-radius: 0.75rem;
    background-image:
        linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.3) 60%, rgba(0, 0, 0, 0.15) 100%),
        url('https://lh3.googleusercontent.com/aida-public/AB6AXuCxgCmKfgfEizVeSVzBDtz7BdYMZNZhsRcCCoL0ywBbnEvVHQ25X92O_xy4c65EpGw-ezvQTe2qL2H90Eij3wDK9Zl8eicLIAKTPGD55exQSEhjXPClYirfA8q-FuzY2RtEBDg8_C9saRQjV7HoRrXnTOR2hISzf2sirO7NixpOzwbV6mVZrhDxJ2S7KV78LV6T-Y4ux44R7yE5RWHqKROSqC3d_zx1fJJiEza8U6Iq8hzoKnz_7da2XBLCSbpeZMOzDOSdNcGks1I');
    background-size: cover;
    background-position: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    background-color: rgba(34, 182, 195, 0.2);
    border: 1px solid rgba(34, 182, 195, 0.3);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    backdrop-filter: blur(4px);
}

.hero-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-light);
    line-height: 1.1;
    letter-spacing: -0.04em;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 0.25rem;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1rem;
    color: #e5e7eb;
    font-weight: 300;
    line-height: 1.7;
    max-width: 36rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 0.5rem;
}

@media (min-width: 768px) {
    .hero-section {
        padding: 3rem 1.5rem 5rem;
    }

    .hero-content {
        min-height: 580px;
        padding: 4rem;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-description {
        font-size: 1.25rem;
    }
}

/* ===============================================
   Requirements Header Section
   =============================================== */
.requirements-header {
    padding-top: 3rem;
}

.requirements-header-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid #f0f4f4;
}

.section-label {
    display: block;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section-description {
    color: var(--text-gray);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.7;
    margin-top: 1rem;
}

.requirements-stats {
    display: flex;
    gap: 1rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    padding-left: 1rem;
    border-left: 2px solid var(--primary);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.625rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .requirements-header-content {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
    }

    .requirements-text {
        max-width: 36rem;
    }

    .section-title {
        font-size: 2.25rem;
    }
}

/* ===============================================
   Scenarios Grid Section
   =============================================== */
.scenarios-section {
    padding: 3rem 0;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.scenario-card {
    display: flex;
    flex-direction: column;
    padding: 2rem;
    background-color: var(--bg-light);
    border: 1px solid #f0f4f4;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.scenario-card:hover {
    border-color: rgba(34, 182, 195, 0.5);
}

.scenario-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    background-color: var(--primary-light);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.scenario-icon .material-symbols-outlined {
    font-size: 1.75rem;
    color: var(--primary);
}

.scenario-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.scenario-card:hover .scenario-title {
    color: var(--primary);
}

.scenario-size {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.scenario-focus {
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.scenario-description {
    font-size: 0.875rem;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===============================================
   Product Curation Section
   =============================================== */
.product-curation-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.curation-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    text-align: left;
    margin-bottom: 3rem;
}

.curation-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .curation-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

.curation-card {
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
}

.curation-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.curation-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.curation-icon .material-symbols-outlined {
    font-size: 28px;
    color: var(--primary);
}

.curation-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.curation-card-description {
    font-size: 0.938rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.scenario-features {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.scenario-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #6b7280;
}

.scenario-features .material-symbols-outlined {
    font-size: 1rem;
    color: var(--primary);
}

@media (min-width: 640px) {
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .scenarios-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===============================================
   Partner Section
   =============================================== */
.partner-section {
    padding: 4rem 0 5rem;
}

.partner-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    background-color: var(--bg-gray);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.partner-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.partner-description {
    color: #4b5563;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.partner-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.contact-item .material-symbols-outlined {
    color: var(--primary);
}

.partner-form-container {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid #f0f4f4;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.partner-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #9ca3af;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: #f9fafb;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    text-align: center;
    font-size: 0.625rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-top: 0.5rem;
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .partner-container {
        flex-direction: row;
        padding: 3rem;
    }

    .partner-info {
        width: 33.33%;
    }

    .partner-form-container {
        width: 66.67%;
    }
}

/* ===============================================
   Footer
   =============================================== */
.footer {
    background-color: var(--bg-light);
    border-top: 1px solid #f0f4f4;
    padding: 3rem 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0.5;
    filter: grayscale(1);
    transition: var(--transition);
}

.footer-logo:hover {
    opacity: 1;
    filter: grayscale(0);
}

.footer-logo .logo-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.footer-brand {
    font-size: 0.875rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}

.footer-links a {
    font-size: 0.75rem;
    font-weight: 500;
    color: #6b7280;
    transition: var(--transition);
}

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

.footer-copyright {
    font-size: 0.625rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

/* ===============================================
   Modal Base Styles
   =============================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background-color: rgba(17, 20, 24, 0.5);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal {
    background-color: var(--bg-light);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

/* ===============================================
   Proposal Modal
   =============================================== */
.proposal-modal {
    width: 100%;
    max-width: 1024px;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #f0f4f4;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: none;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background-color: #f3f4f6;
}

.modal-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.proposal-form-section {
    flex: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-bottom: 1px solid #f0f4f4;
}

.input-readonly {
    position: relative;
}

.input-readonly .form-input {
    padding-right: 2.5rem;
    cursor: not-allowed;
    opacity: 0.7;
}

.lock-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    color: #9ca3af;
}

.proposal-textarea {
    min-height: 200px;
}

.proposal-upload-section {
    padding: 1.5rem;
    background-color: #fafafa;
}

.upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    border: 2px dashed var(--border-gray);
    border-radius: 0.75rem;
    background-color: var(--bg-light);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.upload-zone:hover {
    border-color: var(--modal-primary);
}

.upload-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    background-color: rgba(53, 128, 233, 0.05);
    border-radius: 50%;
    margin-bottom: 1rem;
}

.upload-icon .material-symbols-outlined {
    font-size: 2rem;
    color: var(--modal-primary);
}

.upload-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.upload-subtext {
    font-size: 0.75rem;
    color: #6b7280;
}

.upload-browse {
    color: var(--modal-primary);
    font-weight: 500;
}

.upload-formats {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.upload-formats span {
    padding: 0.25rem 0.5rem;
    font-size: 0.625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #9ca3af;
    border: 1px solid #e5e7eb;
    border-radius: 0.25rem;
}

.uploaded-files {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.uploaded-file {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background-color: var(--bg-light);
    border: 1px solid #f0f4f4;
    border-radius: 0.5rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.file-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background-color: rgba(53, 128, 233, 0.1);
    border-radius: 0.5rem;
}

.file-icon .material-symbols-outlined {
    font-size: 1.25rem;
    color: var(--modal-primary);
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.625rem;
    color: #6b7280;
}

.file-delete {
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    color: #9ca3af;
    transition: var(--transition);
}

.file-delete:hover {
    color: #ef4444;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid #f0f4f4;
    background-color: var(--bg-light);
}

.modal-footer .btn-primary {
    background-color: var(--modal-primary);
}

.modal-footer .btn-primary:hover {
    background-color: var(--modal-primary-hover);
}

@media (min-width: 768px) {
    .modal-body {
        flex-direction: row;
    }

    .proposal-form-section {
        flex: 1;
        border-bottom: none;
        border-right: 1px solid #f0f4f4;
    }

    .proposal-upload-section {
        width: 380px;
    }
}

/* ===============================================
   Success Modal
   =============================================== */
.success-modal {
    width: 100%;
    max-width: 520px;
    padding: 2rem;
    text-align: center;
}

.success-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.success-icon .material-symbols-outlined {
    font-size: 4rem;
    color: #22c55e;
    background-color: #f0fdf4;
    border-radius: 50%;
    padding: 1rem;
    border: 4px solid var(--bg-light);
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.2);
}

.success-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.success-message {
    color: #4a5568;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.success-message strong {
    color: var(--text-dark);
}

.success-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 320px;
    margin: 0 auto;
}

.success-buttons .btn-primary {
    padding: 1rem 1.5rem;
    background-color: var(--modal-primary);
}

.success-buttons .btn-primary:hover {
    background-color: var(--modal-primary-hover);
}

.success-support {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #f0f4f4;
}

.success-support p {
    font-size: 0.875rem;
    color: #6b7280;
}

.support-link {
    color: var(--modal-primary);
    font-weight: 500;
}

.support-link:hover {
    text-decoration: underline;
}

@media (min-width: 768px) {
    .success-modal {
        padding: 3rem;
    }

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

/* ===============================================
   Animations
   =============================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.5s ease forwards;
}